1 #!/usr/bin/env python |
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2 # -*- coding: utf-8 -*- |
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3 # |
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4 # Library to extract EXIF information from digital camera image files |
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5 # http://sourceforge.net/projects/exif-py/ |
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6 # |
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7 # VERSION 1.1.0 |
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8 # |
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9 # To use this library call with: |
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10 # f = open(path_name, 'rb') |
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11 # tags = EXIF.process_file(f) |
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12 # |
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13 # To ignore MakerNote tags, pass the -q or --quick |
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14 # command line arguments, or as |
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15 # tags = EXIF.process_file(f, details=False) |
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16 # |
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17 # To stop processing after a certain tag is retrieved, |
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18 # pass the -t TAG or --stop-tag TAG argument, or as |
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19 # tags = EXIF.process_file(f, stop_tag='TAG') |
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20 # |
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21 # where TAG is a valid tag name, ex 'DateTimeOriginal' |
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22 # |
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23 # These 2 are useful when you are retrieving a large list of images |
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24 # |
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25 # |
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26 # To return an error on invalid tags, |
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27 # pass the -s or --strict argument, or as |
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28 # tags = EXIF.process_file(f, strict=True) |
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29 # |
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30 # Otherwise these tags will be ignored |
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31 # |
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32 # Returned tags will be a dictionary mapping names of EXIF tags to their |
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33 # values in the file named by path_name. You can process the tags |
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34 # as you wish. In particular, you can iterate through all the tags with: |
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35 # for tag in tags.keys(): |
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36 # if tag not in ('JPEGThumbnail', 'TIFFThumbnail', 'Filename', |
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37 # 'EXIF MakerNote'): |
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38 # print "Key: %s, value %s" % (tag, tags[tag]) |
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39 # (This code uses the if statement to avoid printing out a few of the |
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40 # tags that tend to be long or boring.) |
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41 # |
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42 # The tags dictionary will include keys for all of the usual EXIF |
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43 # tags, and will also include keys for Makernotes used by some |
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44 # cameras, for which we have a good specification. |
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45 # |
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46 # Note that the dictionary keys are the IFD name followed by the |
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47 # tag name. For example: |
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48 # 'EXIF DateTimeOriginal', 'Image Orientation', 'MakerNote FocusMode' |
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49 # |
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50 # Copyright (c) 2002-2007 Gene Cash All rights reserved |
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51 # Copyright (c) 2007-2008 Ianaré Sévi All rights reserved |
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52 # |
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53 # Redistribution and use in source and binary forms, with or without |
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54 # modification, are permitted provided that the following conditions |
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55 # are met: |
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56 # |
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57 # 1. Redistributions of source code must retain the above copyright |
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58 # notice, this list of conditions and the following disclaimer. |
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59 # |
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60 # 2. Redistributions in binary form must reproduce the above |
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61 # copyright notice, this list of conditions and the following |
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62 # disclaimer in the documentation and/or other materials provided |
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63 # with the distribution. |
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64 # |
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65 # 3. Neither the name of the authors nor the names of its contributors |
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66 # may be used to endorse or promote products derived from this |
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67 # software without specific prior written permission. |
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68 # |
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69 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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70 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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71 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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72 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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73 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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74 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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75 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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76 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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77 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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78 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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79 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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80 # |
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81 # |
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82 # ----- See 'changes.txt' file for all contributors and changes ----- # |
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83 # |
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84 import mmap |
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85 |
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86 # Don't throw an exception when given an out of range character. |
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87 def make_string(seq): |
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88 str = '' |
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89 for c in seq: |
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90 # Screen out non-printing characters |
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91 if 32 <= c and c < 256: |
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92 str += chr(c) |
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93 # If no printing chars |
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94 if not str: |
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95 return seq |
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96 return str |
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97 |
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98 # Special version to deal with the code in the first 8 bytes of a user comment. |
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99 # First 8 bytes gives coding system e.g. ASCII vs. JIS vs Unicode |
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100 def make_string_uc(seq): |
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101 code = seq[0:8] |
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102 seq = seq[8:] |
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103 # Of course, this is only correct if ASCII, and the standard explicitly |
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104 # allows JIS and Unicode. |
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105 return make_string(seq) |
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106 |
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107 # field type descriptions as (length, abbreviation, full name) tuples |
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108 FIELD_TYPES = ( |
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109 (0, 'X', 'Proprietary'), # no such type |
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110 (1, 'B', 'Byte'), |
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111 (1, 'A', 'ASCII'), |
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112 (2, 'S', 'Short'), |
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113 (4, 'L', 'Long'), |
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114 (8, 'R', 'Ratio'), |
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115 (1, 'SB', 'Signed Byte'), |
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116 (1, 'U', 'Undefined'), |
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117 (2, 'SS', 'Signed Short'), |
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118 (4, 'SL', 'Signed Long'), |
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119 (8, 'SR', 'Signed Ratio'), |
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120 ) |
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121 |
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122 # dictionary of main EXIF tag names |
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123 # first element of tuple is tag name, optional second element is |
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124 # another dictionary giving names to values |
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125 EXIF_TAGS = { |
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126 0x0100: ('ImageWidth', ), |
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127 0x0101: ('ImageLength', ), |
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128 0x0102: ('BitsPerSample', ), |
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129 0x0103: ('Compression', |
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130 {1: 'Uncompressed', |
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131 2: 'CCITT 1D', |
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132 3: 'T4/Group 3 Fax', |
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133 4: 'T6/Group 4 Fax', |
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134 5: 'LZW', |
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135 6: 'JPEG (old-style)', |
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136 7: 'JPEG', |
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137 8: 'Adobe Deflate', |
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138 9: 'JBIG B&W', |
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139 10: 'JBIG Color', |
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140 32766: 'Next', |
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141 32769: 'Epson ERF Compressed', |
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142 32771: 'CCIRLEW', |
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143 32773: 'PackBits', |
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144 32809: 'Thunderscan', |
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145 32895: 'IT8CTPAD', |
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146 32896: 'IT8LW', |
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147 32897: 'IT8MP', |
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148 32898: 'IT8BL', |
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149 32908: 'PixarFilm', |
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150 32909: 'PixarLog', |
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151 32946: 'Deflate', |
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152 32947: 'DCS', |
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153 34661: 'JBIG', |
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154 34676: 'SGILog', |
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155 34677: 'SGILog24', |
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156 34712: 'JPEG 2000', |
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157 34713: 'Nikon NEF Compressed', |
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158 65000: 'Kodak DCR Compressed', |
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159 65535: 'Pentax PEF Compressed'}), |
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160 0x0106: ('PhotometricInterpretation', ), |
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161 0x0107: ('Thresholding', ), |
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162 0x010A: ('FillOrder', ), |
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163 0x010D: ('DocumentName', ), |
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164 0x010E: ('ImageDescription', ), |
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165 0x010F: ('Make', ), |
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166 0x0110: ('Model', ), |
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167 0x0111: ('StripOffsets', ), |
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168 0x0112: ('Orientation', |
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169 {1: 'Horizontal (normal)', |
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170 2: 'Mirrored horizontal', |
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171 3: 'Rotated 180', |
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172 4: 'Mirrored vertical', |
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173 5: 'Mirrored horizontal then rotated 90 CCW', |
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174 6: 'Rotated 90 CW', |
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175 7: 'Mirrored horizontal then rotated 90 CW', |
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176 8: 'Rotated 90 CCW'}), |
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177 0x0115: ('SamplesPerPixel', ), |
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178 0x0116: ('RowsPerStrip', ), |
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179 0x0117: ('StripByteCounts', ), |
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180 0x011A: ('XResolution', ), |
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181 0x011B: ('YResolution', ), |
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182 0x011C: ('PlanarConfiguration', ), |
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183 0x011D: ('PageName', make_string), |
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184 0x0128: ('ResolutionUnit', |
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185 {1: 'Not Absolute', |
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186 2: 'Pixels/Inch', |
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187 3: 'Pixels/Centimeter'}), |
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188 0x012D: ('TransferFunction', ), |
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189 0x0131: ('Software', ), |
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190 0x0132: ('DateTime', ), |
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191 0x013B: ('Artist', ), |
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192 0x013E: ('WhitePoint', ), |
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193 0x013F: ('PrimaryChromaticities', ), |
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194 0x0156: ('TransferRange', ), |
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195 0x0200: ('JPEGProc', ), |
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196 0x0201: ('JPEGInterchangeFormat', ), |
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197 0x0202: ('JPEGInterchangeFormatLength', ), |
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198 0x0211: ('YCbCrCoefficients', ), |
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199 0x0212: ('YCbCrSubSampling', ), |
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200 0x0213: ('YCbCrPositioning', |
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201 {1: 'Centered', |
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202 2: 'Co-sited'}), |
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203 0x0214: ('ReferenceBlackWhite', ), |
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204 |
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205 0x4746: ('Rating', ), |
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206 |
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207 0x828D: ('CFARepeatPatternDim', ), |
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208 0x828E: ('CFAPattern', ), |
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209 0x828F: ('BatteryLevel', ), |
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210 0x8298: ('Copyright', ), |
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211 0x829A: ('ExposureTime', ), |
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212 0x829D: ('FNumber', ), |
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213 0x83BB: ('IPTC/NAA', ), |
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214 0x8769: ('ExifOffset', ), |
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215 0x8773: ('InterColorProfile', ), |
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216 0x8822: ('ExposureProgram', |
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217 {0: 'Unidentified', |
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218 1: 'Manual', |
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219 2: 'Program Normal', |
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220 3: 'Aperture Priority', |
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221 4: 'Shutter Priority', |
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222 5: 'Program Creative', |
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223 6: 'Program Action', |
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224 7: 'Portrait Mode', |
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225 8: 'Landscape Mode'}), |
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226 0x8824: ('SpectralSensitivity', ), |
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227 0x8825: ('GPSInfo', ), |
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228 0x8827: ('ISOSpeedRatings', ), |
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229 0x8828: ('OECF', ), |
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230 0x9000: ('ExifVersion', make_string), |
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231 0x9003: ('DateTimeOriginal', ), |
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232 0x9004: ('DateTimeDigitized', ), |
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233 0x9101: ('ComponentsConfiguration', |
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234 {0: '', |
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235 1: 'Y', |
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236 2: 'Cb', |
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237 3: 'Cr', |
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238 4: 'Red', |
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239 5: 'Green', |
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240 6: 'Blue'}), |
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241 0x9102: ('CompressedBitsPerPixel', ), |
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242 0x9201: ('ShutterSpeedValue', ), |
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243 0x9202: ('ApertureValue', ), |
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244 0x9203: ('BrightnessValue', ), |
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245 0x9204: ('ExposureBiasValue', ), |
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246 0x9205: ('MaxApertureValue', ), |
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247 0x9206: ('SubjectDistance', ), |
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248 0x9207: ('MeteringMode', |
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249 {0: 'Unidentified', |
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250 1: 'Average', |
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251 2: 'CenterWeightedAverage', |
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252 3: 'Spot', |
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253 4: 'MultiSpot', |
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254 5: 'Pattern'}), |
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255 0x9208: ('LightSource', |
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256 {0: 'Unknown', |
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257 1: 'Daylight', |
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258 2: 'Fluorescent', |
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259 3: 'Tungsten', |
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260 9: 'Fine Weather', |
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261 10: 'Flash', |
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262 11: 'Shade', |
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263 12: 'Daylight Fluorescent', |
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264 13: 'Day White Fluorescent', |
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265 14: 'Cool White Fluorescent', |
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266 15: 'White Fluorescent', |
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267 17: 'Standard Light A', |
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268 18: 'Standard Light B', |
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269 19: 'Standard Light C', |
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270 20: 'D55', |
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271 21: 'D65', |
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272 22: 'D75', |
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273 255: 'Other'}), |
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274 0x9209: ('Flash', |
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275 {0: 'No', |
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276 1: 'Fired', |
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277 5: 'Fired (?)', # no return sensed |
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278 7: 'Fired (!)', # return sensed |
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279 9: 'Fill Fired', |
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280 13: 'Fill Fired (?)', |
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281 15: 'Fill Fired (!)', |
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282 16: 'Off', |
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283 24: 'Auto Off', |
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284 25: 'Auto Fired', |
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285 29: 'Auto Fired (?)', |
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286 31: 'Auto Fired (!)', |
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287 32: 'Not Available'}), |
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288 0x920A: ('FocalLength', ), |
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289 0x9214: ('SubjectArea', ), |
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290 0x927C: ('MakerNote', ), |
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291 0x9286: ('UserComment', make_string_uc), |
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292 0x9290: ('SubSecTime', ), |
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293 0x9291: ('SubSecTimeOriginal', ), |
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294 0x9292: ('SubSecTimeDigitized', ), |
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295 |
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296 # used by Windows Explorer |
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297 0x9C9B: ('XPTitle', ), |
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298 0x9C9C: ('XPComment', ), |
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299 0x9C9D: ('XPAuthor', ), #(ignored by Windows Explorer if Artist exists) |
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300 0x9C9E: ('XPKeywords', ), |
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301 0x9C9F: ('XPSubject', ), |
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302 |
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303 0xA000: ('FlashPixVersion', make_string), |
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304 0xA001: ('ColorSpace', |
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305 {1: 'sRGB', |
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306 2: 'Adobe RGB', |
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307 65535: 'Uncalibrated'}), |
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308 0xA002: ('ExifImageWidth', ), |
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309 0xA003: ('ExifImageLength', ), |
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310 0xA005: ('InteroperabilityOffset', ), |
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311 0xA20B: ('FlashEnergy', ), # 0x920B in TIFF/EP |
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312 0xA20C: ('SpatialFrequencyResponse', ), # 0x920C |
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313 0xA20E: ('FocalPlaneXResolution', ), # 0x920E |
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314 0xA20F: ('FocalPlaneYResolution', ), # 0x920F |
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315 0xA210: ('FocalPlaneResolutionUnit', ), # 0x9210 |
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316 0xA214: ('SubjectLocation', ), # 0x9214 |
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317 0xA215: ('ExposureIndex', ), # 0x9215 |
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318 0xA217: ('SensingMethod', # 0x9217 |
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319 {1: 'Not defined', |
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320 2: 'One-chip color area', |
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321 3: 'Two-chip color area', |
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322 4: 'Three-chip color area', |
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323 5: 'Color sequential area', |
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324 7: 'Trilinear', |
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325 8: 'Color sequential linear'}), |
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326 0xA300: ('FileSource', |
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327 {1: 'Film Scanner', |
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328 2: 'Reflection Print Scanner', |
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329 3: 'Digital Camera'}), |
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330 0xA301: ('SceneType', |
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331 {1: 'Directly Photographed'}), |
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332 0xA302: ('CVAPattern', ), |
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333 0xA401: ('CustomRendered', |
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334 {0: 'Normal', |
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335 1: 'Custom'}), |
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336 0xA402: ('ExposureMode', |
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337 {0: 'Auto Exposure', |
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338 1: 'Manual Exposure', |
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339 2: 'Auto Bracket'}), |
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340 0xA403: ('WhiteBalance', |
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341 {0: 'Auto', |
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342 1: 'Manual'}), |
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343 0xA404: ('DigitalZoomRatio', ), |
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344 0xA405: ('FocalLengthIn35mmFilm', ), |
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345 0xA406: ('SceneCaptureType', |
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346 {0: 'Standard', |
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347 1: 'Landscape', |
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348 2: 'Portrait', |
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349 3: 'Night)'}), |
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350 0xA407: ('GainControl', |
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351 {0: 'None', |
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352 1: 'Low gain up', |
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353 2: 'High gain up', |
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354 3: 'Low gain down', |
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355 4: 'High gain down'}), |
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356 0xA408: ('Contrast', |
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357 {0: 'Normal', |
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358 1: 'Soft', |
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359 2: 'Hard'}), |
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360 0xA409: ('Saturation', |
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361 {0: 'Normal', |
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362 1: 'Soft', |
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363 2: 'Hard'}), |
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364 0xA40A: ('Sharpness', |
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365 {0: 'Normal', |
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366 1: 'Soft', |
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367 2: 'Hard'}), |
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368 0xA40B: ('DeviceSettingDescription', ), |
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369 0xA40C: ('SubjectDistanceRange', ), |
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370 0xA500: ('Gamma', ), |
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371 0xC4A5: ('PrintIM', ), |
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372 0xEA1C: ('Padding', ), |
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373 } |
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374 |
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375 # interoperability tags |
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376 INTR_TAGS = { |
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377 0x0001: ('InteroperabilityIndex', ), |
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378 0x0002: ('InteroperabilityVersion', ), |
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379 0x1000: ('RelatedImageFileFormat', ), |
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380 0x1001: ('RelatedImageWidth', ), |
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381 0x1002: ('RelatedImageLength', ), |
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382 } |
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383 |
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384 # GPS tags (not used yet, haven't seen camera with GPS) |
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385 GPS_TAGS = { |
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386 0x0000: ('GPSVersionID', ), |
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387 0x0001: ('GPSLatitudeRef', ), |
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388 0x0002: ('GPSLatitude', ), |
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389 0x0003: ('GPSLongitudeRef', ), |
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390 0x0004: ('GPSLongitude', ), |
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391 0x0005: ('GPSAltitudeRef', ), |
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392 0x0006: ('GPSAltitude', ), |
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393 0x0007: ('GPSTimeStamp', ), |
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394 0x0008: ('GPSSatellites', ), |
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395 0x0009: ('GPSStatus', ), |
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396 0x000A: ('GPSMeasureMode', ), |
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397 0x000B: ('GPSDOP', ), |
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398 0x000C: ('GPSSpeedRef', ), |
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399 0x000D: ('GPSSpeed', ), |
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400 0x000E: ('GPSTrackRef', ), |
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401 0x000F: ('GPSTrack', ), |
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402 0x0010: ('GPSImgDirectionRef', ), |
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403 0x0011: ('GPSImgDirection', ), |
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404 0x0012: ('GPSMapDatum', ), |
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405 0x0013: ('GPSDestLatitudeRef', ), |
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406 0x0014: ('GPSDestLatitude', ), |
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407 0x0015: ('GPSDestLongitudeRef', ), |
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408 0x0016: ('GPSDestLongitude', ), |
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409 0x0017: ('GPSDestBearingRef', ), |
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410 0x0018: ('GPSDestBearing', ), |
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411 0x0019: ('GPSDestDistanceRef', ), |
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412 0x001A: ('GPSDestDistance', ), |
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413 0x001D: ('GPSDate', ), |
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414 } |
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415 |
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416 # Ignore these tags when quick processing |
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417 # 0x927C is MakerNote Tags |
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418 # 0x9286 is user comment |
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419 IGNORE_TAGS=(0x9286, 0x927C) |
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420 |
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421 # http://tomtia.plala.jp/DigitalCamera/MakerNote/index.asp |
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422 def nikon_ev_bias(seq): |
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423 # First digit seems to be in steps of 1/6 EV. |
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424 # Does the third value mean the step size? It is usually 6, |
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425 # but it is 12 for the ExposureDifference. |
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426 # |
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427 # Check for an error condition that could cause a crash. |
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428 # This only happens if something has gone really wrong in |
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429 # reading the Nikon MakerNote. |
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430 if len( seq ) < 4 : return "" |
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431 # |
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432 if seq == [252, 1, 6, 0]: |
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433 return "-2/3 EV" |
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434 if seq == [253, 1, 6, 0]: |
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435 return "-1/2 EV" |
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436 if seq == [254, 1, 6, 0]: |
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437 return "-1/3 EV" |
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438 if seq == [0, 1, 6, 0]: |
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439 return "0 EV" |
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440 if seq == [2, 1, 6, 0]: |
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441 return "+1/3 EV" |
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442 if seq == [3, 1, 6, 0]: |
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443 return "+1/2 EV" |
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444 if seq == [4, 1, 6, 0]: |
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445 return "+2/3 EV" |
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446 # Handle combinations not in the table. |
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447 a = seq[0] |
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448 # Causes headaches for the +/- logic, so special case it. |
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449 if a == 0: |
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450 return "0 EV" |
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451 if a > 127: |
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452 a = 256 - a |
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453 ret_str = "-" |
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454 else: |
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455 ret_str = "+" |
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456 b = seq[2] # Assume third value means the step size |
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457 whole = a / b |
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458 a = a % b |
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459 if whole != 0: |
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460 ret_str = ret_str + str(whole) + " " |
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461 if a == 0: |
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462 ret_str = ret_str + "EV" |
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463 else: |
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464 r = Ratio(a, b) |
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465 ret_str = ret_str + r.__repr__() + " EV" |
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466 return ret_str |
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467 |
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468 # Nikon E99x MakerNote Tags |
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469 MAKERNOTE_NIKON_NEWER_TAGS={ |
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470 0x0001: ('MakernoteVersion', make_string), # Sometimes binary |
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471 0x0002: ('ISOSetting', make_string), |
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472 0x0003: ('ColorMode', ), |
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473 0x0004: ('Quality', ), |
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474 0x0005: ('Whitebalance', ), |
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475 0x0006: ('ImageSharpening', ), |
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476 0x0007: ('FocusMode', ), |
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477 0x0008: ('FlashSetting', ), |
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478 0x0009: ('AutoFlashMode', ), |
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479 0x000B: ('WhiteBalanceBias', ), |
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480 0x000C: ('WhiteBalanceRBCoeff', ), |
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481 0x000D: ('ProgramShift', nikon_ev_bias), |
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482 # Nearly the same as the other EV vals, but step size is 1/12 EV (?) |
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483 0x000E: ('ExposureDifference', nikon_ev_bias), |
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484 0x000F: ('ISOSelection', ), |
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485 0x0011: ('NikonPreview', ), |
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486 0x0012: ('FlashCompensation', nikon_ev_bias), |
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487 0x0013: ('ISOSpeedRequested', ), |
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488 0x0016: ('PhotoCornerCoordinates', ), |
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489 # 0x0017: Unknown, but most likely an EV value |
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490 0x0018: ('FlashBracketCompensationApplied', nikon_ev_bias), |
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491 0x0019: ('AEBracketCompensationApplied', ), |
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492 0x001A: ('ImageProcessing', ), |
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493 0x001B: ('CropHiSpeed', ), |
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494 0x001D: ('SerialNumber', ), # Conflict with 0x00A0 ? |
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495 0x001E: ('ColorSpace', ), |
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496 0x001F: ('VRInfo', ), |
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497 0x0020: ('ImageAuthentication', ), |
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498 0x0022: ('ActiveDLighting', ), |
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499 0x0023: ('PictureControl', ), |
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500 0x0024: ('WorldTime', ), |
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501 0x0025: ('ISOInfo', ), |
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502 0x0080: ('ImageAdjustment', ), |
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503 0x0081: ('ToneCompensation', ), |
|
504 0x0082: ('AuxiliaryLens', ), |
|
505 0x0083: ('LensType', ), |
|
506 0x0084: ('LensMinMaxFocalMaxAperture', ), |
|
507 0x0085: ('ManualFocusDistance', ), |
|
508 0x0086: ('DigitalZoomFactor', ), |
|
509 0x0087: ('FlashMode', |
|
510 {0x00: 'Did Not Fire', |
|
511 0x01: 'Fired, Manual', |
|
512 0x07: 'Fired, External', |
|
513 0x08: 'Fired, Commander Mode ', |
|
514 0x09: 'Fired, TTL Mode'}), |
|
515 0x0088: ('AFFocusPosition', |
|
516 {0x0000: 'Center', |
|
517 0x0100: 'Top', |
|
518 0x0200: 'Bottom', |
|
519 0x0300: 'Left', |
|
520 0x0400: 'Right'}), |
|
521 0x0089: ('BracketingMode', |
|
522 {0x00: 'Single frame, no bracketing', |
|
523 0x01: 'Continuous, no bracketing', |
|
524 0x02: 'Timer, no bracketing', |
|
525 0x10: 'Single frame, exposure bracketing', |
|
526 0x11: 'Continuous, exposure bracketing', |
|
527 0x12: 'Timer, exposure bracketing', |
|
528 0x40: 'Single frame, white balance bracketing', |
|
529 0x41: 'Continuous, white balance bracketing', |
|
530 0x42: 'Timer, white balance bracketing'}), |
|
531 0x008A: ('AutoBracketRelease', ), |
|
532 0x008B: ('LensFStops', ), |
|
533 0x008C: ('NEFCurve1', ), # ExifTool calls this 'ContrastCurve' |
|
534 0x008D: ('ColorMode', ), |
|
535 0x008F: ('SceneMode', ), |
|
536 0x0090: ('LightingType', ), |
|
537 0x0091: ('ShotInfo', ), # First 4 bytes are a version number in ASCII |
|
538 0x0092: ('HueAdjustment', ), |
|
539 # ExifTool calls this 'NEFCompression', should be 1-4 |
|
540 0x0093: ('Compression', ), |
|
541 0x0094: ('Saturation', |
|
542 {-3: 'B&W', |
|
543 -2: '-2', |
|
544 -1: '-1', |
|
545 0: '0', |
|
546 1: '1', |
|
547 2: '2'}), |
|
548 0x0095: ('NoiseReduction', ), |
|
549 0x0096: ('NEFCurve2', ), # ExifTool calls this 'LinearizationTable' |
|
550 0x0097: ('ColorBalance', ), # First 4 bytes are a version number in ASCII |
|
551 0x0098: ('LensData', ), # First 4 bytes are a version number in ASCII |
|
552 0x0099: ('RawImageCenter', ), |
|
553 0x009A: ('SensorPixelSize', ), |
|
554 0x009C: ('Scene Assist', ), |
|
555 0x009E: ('RetouchHistory', ), |
|
556 0x00A0: ('SerialNumber', ), |
|
557 0x00A2: ('ImageDataSize', ), |
|
558 # 00A3: unknown - a single byte 0 |
|
559 # 00A4: In NEF, looks like a 4 byte ASCII version number ('0200') |
|
560 0x00A5: ('ImageCount', ), |
|
561 0x00A6: ('DeletedImageCount', ), |
|
562 0x00A7: ('TotalShutterReleases', ), |
|
563 # First 4 bytes are a version number in ASCII, with version specific |
|
564 # info to follow. Its hard to treat it as a string due to embedded nulls. |
|
565 0x00A8: ('FlashInfo', ), |
|
566 0x00A9: ('ImageOptimization', ), |
|
567 0x00AA: ('Saturation', ), |
|
568 0x00AB: ('DigitalVariProgram', ), |
|
569 0x00AC: ('ImageStabilization', ), |
|
570 0x00AD: ('Responsive AF', ), # 'AFResponse' |
|
571 0x00B0: ('MultiExposure', ), |
|
572 0x00B1: ('HighISONoiseReduction', ), |
|
573 0x00B7: ('AFInfo', ), |
|
574 0x00B8: ('FileInfo', ), |
|
575 # 00B9: unknown |
|
576 0x0100: ('DigitalICE', ), |
|
577 0x0103: ('PreviewCompression', |
|
578 {1: 'Uncompressed', |
|
579 2: 'CCITT 1D', |
|
580 3: 'T4/Group 3 Fax', |
|
581 4: 'T6/Group 4 Fax', |
|
582 5: 'LZW', |
|
583 6: 'JPEG (old-style)', |
|
584 7: 'JPEG', |
|
585 8: 'Adobe Deflate', |
|
586 9: 'JBIG B&W', |
|
587 10: 'JBIG Color', |
|
588 32766: 'Next', |
|
589 32769: 'Epson ERF Compressed', |
|
590 32771: 'CCIRLEW', |
|
591 32773: 'PackBits', |
|
592 32809: 'Thunderscan', |
|
593 32895: 'IT8CTPAD', |
|
594 32896: 'IT8LW', |
|
595 32897: 'IT8MP', |
|
596 32898: 'IT8BL', |
|
597 32908: 'PixarFilm', |
|
598 32909: 'PixarLog', |
|
599 32946: 'Deflate', |
|
600 32947: 'DCS', |
|
601 34661: 'JBIG', |
|
602 34676: 'SGILog', |
|
603 34677: 'SGILog24', |
|
604 34712: 'JPEG 2000', |
|
605 34713: 'Nikon NEF Compressed', |
|
606 65000: 'Kodak DCR Compressed', |
|
607 65535: 'Pentax PEF Compressed',}), |
|
608 0x0201: ('PreviewImageStart', ), |
|
609 0x0202: ('PreviewImageLength', ), |
|
610 0x0213: ('PreviewYCbCrPositioning', |
|
611 {1: 'Centered', |
|
612 2: 'Co-sited'}), |
|
613 0x0010: ('DataDump', ), |
|
614 } |
|
615 |
|
616 MAKERNOTE_NIKON_OLDER_TAGS = { |
|
617 0x0003: ('Quality', |
|
618 {1: 'VGA Basic', |
|
619 2: 'VGA Normal', |
|
620 3: 'VGA Fine', |
|
621 4: 'SXGA Basic', |
|
622 5: 'SXGA Normal', |
|
623 6: 'SXGA Fine'}), |
|
624 0x0004: ('ColorMode', |
|
625 {1: 'Color', |
|
626 2: 'Monochrome'}), |
|
627 0x0005: ('ImageAdjustment', |
|
628 {0: 'Normal', |
|
629 1: 'Bright+', |
|
630 2: 'Bright-', |
|
631 3: 'Contrast+', |
|
632 4: 'Contrast-'}), |
|
633 0x0006: ('CCDSpeed', |
|
634 {0: 'ISO 80', |
|
635 2: 'ISO 160', |
|
636 4: 'ISO 320', |
|
637 5: 'ISO 100'}), |
|
638 0x0007: ('WhiteBalance', |
|
639 {0: 'Auto', |
|
640 1: 'Preset', |
|
641 2: 'Daylight', |
|
642 3: 'Incandescent', |
|
643 4: 'Fluorescent', |
|
644 5: 'Cloudy', |
|
645 6: 'Speed Light'}), |
|
646 } |
|
647 |
|
648 # decode Olympus SpecialMode tag in MakerNote |
|
649 def olympus_special_mode(v): |
|
650 a={ |
|
651 0: 'Normal', |
|
652 1: 'Unknown', |
|
653 2: 'Fast', |
|
654 3: 'Panorama'} |
|
655 b={ |
|
656 0: 'Non-panoramic', |
|
657 1: 'Left to right', |
|
658 2: 'Right to left', |
|
659 3: 'Bottom to top', |
|
660 4: 'Top to bottom'} |
|
661 if v[0] not in a or v[2] not in b: |
|
662 return v |
|
663 return '%s - sequence %d - %s' % (a[v[0]], v[1], b[v[2]]) |
|
664 |
|
665 MAKERNOTE_OLYMPUS_TAGS={ |
|
666 # ah HAH! those sneeeeeaky bastids! this is how they get past the fact |
|
667 # that a JPEG thumbnail is not allowed in an uncompressed TIFF file |
|
668 0x0100: ('JPEGThumbnail', ), |
|
669 0x0200: ('SpecialMode', olympus_special_mode), |
|
670 0x0201: ('JPEGQual', |
|
671 {1: 'SQ', |
|
672 2: 'HQ', |
|
673 3: 'SHQ'}), |
|
674 0x0202: ('Macro', |
|
675 {0: 'Normal', |
|
676 1: 'Macro', |
|
677 2: 'SuperMacro'}), |
|
678 0x0203: ('BWMode', |
|
679 {0: 'Off', |
|
680 1: 'On'}), |
|
681 0x0204: ('DigitalZoom', ), |
|
682 0x0205: ('FocalPlaneDiagonal', ), |
|
683 0x0206: ('LensDistortionParams', ), |
|
684 0x0207: ('SoftwareRelease', ), |
|
685 0x0208: ('PictureInfo', ), |
|
686 0x0209: ('CameraID', make_string), # print as string |
|
687 0x0F00: ('DataDump', ), |
|
688 0x0300: ('PreCaptureFrames', ), |
|
689 0x0404: ('SerialNumber', ), |
|
690 0x1000: ('ShutterSpeedValue', ), |
|
691 0x1001: ('ISOValue', ), |
|
692 0x1002: ('ApertureValue', ), |
|
693 0x1003: ('BrightnessValue', ), |
|
694 0x1004: ('FlashMode', ), |
|
695 0x1004: ('FlashMode', |
|
696 {2: 'On', |
|
697 3: 'Off'}), |
|
698 0x1005: ('FlashDevice', |
|
699 {0: 'None', |
|
700 1: 'Internal', |
|
701 4: 'External', |
|
702 5: 'Internal + External'}), |
|
703 0x1006: ('ExposureCompensation', ), |
|
704 0x1007: ('SensorTemperature', ), |
|
705 0x1008: ('LensTemperature', ), |
|
706 0x100b: ('FocusMode', |
|
707 {0: 'Auto', |
|
708 1: 'Manual'}), |
|
709 0x1017: ('RedBalance', ), |
|
710 0x1018: ('BlueBalance', ), |
|
711 0x101a: ('SerialNumber', ), |
|
712 0x1023: ('FlashExposureComp', ), |
|
713 0x1026: ('ExternalFlashBounce', |
|
714 {0: 'No', |
|
715 1: 'Yes'}), |
|
716 0x1027: ('ExternalFlashZoom', ), |
|
717 0x1028: ('ExternalFlashMode', ), |
|
718 0x1029: ('Contrast int16u', |
|
719 {0: 'High', |
|
720 1: 'Normal', |
|
721 2: 'Low'}), |
|
722 0x102a: ('SharpnessFactor', ), |
|
723 0x102b: ('ColorControl', ), |
|
724 0x102c: ('ValidBits', ), |
|
725 0x102d: ('CoringFilter', ), |
|
726 0x102e: ('OlympusImageWidth', ), |
|
727 0x102f: ('OlympusImageHeight', ), |
|
728 0x1034: ('CompressionRatio', ), |
|
729 0x1035: ('PreviewImageValid', |
|
730 {0: 'No', |
|
731 1: 'Yes'}), |
|
732 0x1036: ('PreviewImageStart', ), |
|
733 0x1037: ('PreviewImageLength', ), |
|
734 0x1039: ('CCDScanMode', |
|
735 {0: 'Interlaced', |
|
736 1: 'Progressive'}), |
|
737 0x103a: ('NoiseReduction', |
|
738 {0: 'Off', |
|
739 1: 'On'}), |
|
740 0x103b: ('InfinityLensStep', ), |
|
741 0x103c: ('NearLensStep', ), |
|
742 |
|
743 # TODO - these need extra definitions |
|
744 # http://search.cpan.org/src/EXIFTOOL/Image-ExifTool-6.90/html/TagNames/Olympus.html |
|
745 0x2010: ('Equipment', ), |
|
746 0x2020: ('CameraSettings', ), |
|
747 0x2030: ('RawDevelopment', ), |
|
748 0x2040: ('ImageProcessing', ), |
|
749 0x2050: ('FocusInfo', ), |
|
750 0x3000: ('RawInfo ', ), |
|
751 } |
|
752 |
|
753 # 0x2020 CameraSettings |
|
754 MAKERNOTE_OLYMPUS_TAG_0x2020={ |
|
755 0x0100: ('PreviewImageValid', |
|
756 {0: 'No', |
|
757 1: 'Yes'}), |
|
758 0x0101: ('PreviewImageStart', ), |
|
759 0x0102: ('PreviewImageLength', ), |
|
760 0x0200: ('ExposureMode', |
|
761 {1: 'Manual', |
|
762 2: 'Program', |
|
763 3: 'Aperture-priority AE', |
|
764 4: 'Shutter speed priority AE', |
|
765 5: 'Program-shift'}), |
|
766 0x0201: ('AELock', |
|
767 {0: 'Off', |
|
768 1: 'On'}), |
|
769 0x0202: ('MeteringMode', |
|
770 {2: 'Center Weighted', |
|
771 3: 'Spot', |
|
772 5: 'ESP', |
|
773 261: 'Pattern+AF', |
|
774 515: 'Spot+Highlight control', |
|
775 1027: 'Spot+Shadow control'}), |
|
776 0x0300: ('MacroMode', |
|
777 {0: 'Off', |
|
778 1: 'On'}), |
|
779 0x0301: ('FocusMode', |
|
780 {0: 'Single AF', |
|
781 1: 'Sequential shooting AF', |
|
782 2: 'Continuous AF', |
|
783 3: 'Multi AF', |
|
784 10: 'MF'}), |
|
785 0x0302: ('FocusProcess', |
|
786 {0: 'AF Not Used', |
|
787 1: 'AF Used'}), |
|
788 0x0303: ('AFSearch', |
|
789 {0: 'Not Ready', |
|
790 1: 'Ready'}), |
|
791 0x0304: ('AFAreas', ), |
|
792 0x0401: ('FlashExposureCompensation', ), |
|
793 0x0500: ('WhiteBalance2', |
|
794 {0: 'Auto', |
|
795 16: '7500K (Fine Weather with Shade)', |
|
796 17: '6000K (Cloudy)', |
|
797 18: '5300K (Fine Weather)', |
|
798 20: '3000K (Tungsten light)', |
|
799 21: '3600K (Tungsten light-like)', |
|
800 33: '6600K (Daylight fluorescent)', |
|
801 34: '4500K (Neutral white fluorescent)', |
|
802 35: '4000K (Cool white fluorescent)', |
|
803 48: '3600K (Tungsten light-like)', |
|
804 256: 'Custom WB 1', |
|
805 257: 'Custom WB 2', |
|
806 258: 'Custom WB 3', |
|
807 259: 'Custom WB 4', |
|
808 512: 'Custom WB 5400K', |
|
809 513: 'Custom WB 2900K', |
|
810 514: 'Custom WB 8000K', }), |
|
811 0x0501: ('WhiteBalanceTemperature', ), |
|
812 0x0502: ('WhiteBalanceBracket', ), |
|
813 0x0503: ('CustomSaturation', ), # (3 numbers: 1. CS Value, 2. Min, 3. Max) |
|
814 0x0504: ('ModifiedSaturation', |
|
815 {0: 'Off', |
|
816 1: 'CM1 (Red Enhance)', |
|
817 2: 'CM2 (Green Enhance)', |
|
818 3: 'CM3 (Blue Enhance)', |
|
819 4: 'CM4 (Skin Tones)'}), |
|
820 0x0505: ('ContrastSetting', ), # (3 numbers: 1. Contrast, 2. Min, 3. Max) |
|
821 0x0506: ('SharpnessSetting', ), # (3 numbers: 1. Sharpness, 2. Min, 3. Max) |
|
822 0x0507: ('ColorSpace', |
|
823 {0: 'sRGB', |
|
824 1: 'Adobe RGB', |
|
825 2: 'Pro Photo RGB'}), |
|
826 0x0509: ('SceneMode', |
|
827 {0: 'Standard', |
|
828 6: 'Auto', |
|
829 7: 'Sport', |
|
830 8: 'Portrait', |
|
831 9: 'Landscape+Portrait', |
|
832 10: 'Landscape', |
|
833 11: 'Night scene', |
|
834 13: 'Panorama', |
|
835 16: 'Landscape+Portrait', |
|
836 17: 'Night+Portrait', |
|
837 19: 'Fireworks', |
|
838 20: 'Sunset', |
|
839 22: 'Macro', |
|
840 25: 'Documents', |
|
841 26: 'Museum', |
|
842 28: 'Beach&Snow', |
|
843 30: 'Candle', |
|
844 35: 'Underwater Wide1', |
|
845 36: 'Underwater Macro', |
|
846 39: 'High Key', |
|
847 40: 'Digital Image Stabilization', |
|
848 44: 'Underwater Wide2', |
|
849 45: 'Low Key', |
|
850 46: 'Children', |
|
851 48: 'Nature Macro'}), |
|
852 0x050a: ('NoiseReduction', |
|
853 {0: 'Off', |
|
854 1: 'Noise Reduction', |
|
855 2: 'Noise Filter', |
|
856 3: 'Noise Reduction + Noise Filter', |
|
857 4: 'Noise Filter (ISO Boost)', |
|
858 5: 'Noise Reduction + Noise Filter (ISO Boost)'}), |
|
859 0x050b: ('DistortionCorrection', |
|
860 {0: 'Off', |
|
861 1: 'On'}), |
|
862 0x050c: ('ShadingCompensation', |
|
863 {0: 'Off', |
|
864 1: 'On'}), |
|
865 0x050d: ('CompressionFactor', ), |
|
866 0x050f: ('Gradation', |
|
867 {'-1 -1 1': 'Low Key', |
|
868 '0 -1 1': 'Normal', |
|
869 '1 -1 1': 'High Key'}), |
|
870 0x0520: ('PictureMode', |
|
871 {1: 'Vivid', |
|
872 2: 'Natural', |
|
873 3: 'Muted', |
|
874 256: 'Monotone', |
|
875 512: 'Sepia'}), |
|
876 0x0521: ('PictureModeSaturation', ), |
|
877 0x0522: ('PictureModeHue?', ), |
|
878 0x0523: ('PictureModeContrast', ), |
|
879 0x0524: ('PictureModeSharpness', ), |
|
880 0x0525: ('PictureModeBWFilter', |
|
881 {0: 'n/a', |
|
882 1: 'Neutral', |
|
883 2: 'Yellow', |
|
884 3: 'Orange', |
|
885 4: 'Red', |
|
886 5: 'Green'}), |
|
887 0x0526: ('PictureModeTone', |
|
888 {0: 'n/a', |
|
889 1: 'Neutral', |
|
890 2: 'Sepia', |
|
891 3: 'Blue', |
|
892 4: 'Purple', |
|
893 5: 'Green'}), |
|
894 0x0600: ('Sequence', ), # 2 or 3 numbers: 1. Mode, 2. Shot number, 3. Mode bits |
|
895 0x0601: ('PanoramaMode', ), # (2 numbers: 1. Mode, 2. Shot number) |
|
896 0x0603: ('ImageQuality2', |
|
897 {1: 'SQ', |
|
898 2: 'HQ', |
|
899 3: 'SHQ', |
|
900 4: 'RAW'}), |
|
901 0x0901: ('ManometerReading', ), |
|
902 } |
|
903 |
|
904 |
|
905 MAKERNOTE_CASIO_TAGS={ |
|
906 0x0001: ('RecordingMode', |
|
907 {1: 'Single Shutter', |
|
908 2: 'Panorama', |
|
909 3: 'Night Scene', |
|
910 4: 'Portrait', |
|
911 5: 'Landscape'}), |
|
912 0x0002: ('Quality', |
|
913 {1: 'Economy', |
|
914 2: 'Normal', |
|
915 3: 'Fine'}), |
|
916 0x0003: ('FocusingMode', |
|
917 {2: 'Macro', |
|
918 3: 'Auto Focus', |
|
919 4: 'Manual Focus', |
|
920 5: 'Infinity'}), |
|
921 0x0004: ('FlashMode', |
|
922 {1: 'Auto', |
|
923 2: 'On', |
|
924 3: 'Off', |
|
925 4: 'Red Eye Reduction'}), |
|
926 0x0005: ('FlashIntensity', |
|
927 {11: 'Weak', |
|
928 13: 'Normal', |
|
929 15: 'Strong'}), |
|
930 0x0006: ('Object Distance', ), |
|
931 0x0007: ('WhiteBalance', |
|
932 {1: 'Auto', |
|
933 2: 'Tungsten', |
|
934 3: 'Daylight', |
|
935 4: 'Fluorescent', |
|
936 5: 'Shade', |
|
937 129: 'Manual'}), |
|
938 0x000B: ('Sharpness', |
|
939 {0: 'Normal', |
|
940 1: 'Soft', |
|
941 2: 'Hard'}), |
|
942 0x000C: ('Contrast', |
|
943 {0: 'Normal', |
|
944 1: 'Low', |
|
945 2: 'High'}), |
|
946 0x000D: ('Saturation', |
|
947 {0: 'Normal', |
|
948 1: 'Low', |
|
949 2: 'High'}), |
|
950 0x0014: ('CCDSpeed', |
|
951 {64: 'Normal', |
|
952 80: 'Normal', |
|
953 100: 'High', |
|
954 125: '+1.0', |
|
955 244: '+3.0', |
|
956 250: '+2.0'}), |
|
957 } |
|
958 |
|
959 MAKERNOTE_FUJIFILM_TAGS={ |
|
960 0x0000: ('NoteVersion', make_string), |
|
961 0x1000: ('Quality', ), |
|
962 0x1001: ('Sharpness', |
|
963 {1: 'Soft', |
|
964 2: 'Soft', |
|
965 3: 'Normal', |
|
966 4: 'Hard', |
|
967 5: 'Hard'}), |
|
968 0x1002: ('WhiteBalance', |
|
969 {0: 'Auto', |
|
970 256: 'Daylight', |
|
971 512: 'Cloudy', |
|
972 768: 'DaylightColor-Fluorescent', |
|
973 769: 'DaywhiteColor-Fluorescent', |
|
974 770: 'White-Fluorescent', |
|
975 1024: 'Incandescent', |
|
976 3840: 'Custom'}), |
|
977 0x1003: ('Color', |
|
978 {0: 'Normal', |
|
979 256: 'High', |
|
980 512: 'Low'}), |
|
981 0x1004: ('Tone', |
|
982 {0: 'Normal', |
|
983 256: 'High', |
|
984 512: 'Low'}), |
|
985 0x1010: ('FlashMode', |
|
986 {0: 'Auto', |
|
987 1: 'On', |
|
988 2: 'Off', |
|
989 3: 'Red Eye Reduction'}), |
|
990 0x1011: ('FlashStrength', ), |
|
991 0x1020: ('Macro', |
|
992 {0: 'Off', |
|
993 1: 'On'}), |
|
994 0x1021: ('FocusMode', |
|
995 {0: 'Auto', |
|
996 1: 'Manual'}), |
|
997 0x1030: ('SlowSync', |
|
998 {0: 'Off', |
|
999 1: 'On'}), |
|
1000 0x1031: ('PictureMode', |
|
1001 {0: 'Auto', |
|
1002 1: 'Portrait', |
|
1003 2: 'Landscape', |
|
1004 4: 'Sports', |
|
1005 5: 'Night', |
|
1006 6: 'Program AE', |
|
1007 256: 'Aperture Priority AE', |
|
1008 512: 'Shutter Priority AE', |
|
1009 768: 'Manual Exposure'}), |
|
1010 0x1100: ('MotorOrBracket', |
|
1011 {0: 'Off', |
|
1012 1: 'On'}), |
|
1013 0x1300: ('BlurWarning', |
|
1014 {0: 'Off', |
|
1015 1: 'On'}), |
|
1016 0x1301: ('FocusWarning', |
|
1017 {0: 'Off', |
|
1018 1: 'On'}), |
|
1019 0x1302: ('AEWarning', |
|
1020 {0: 'Off', |
|
1021 1: 'On'}), |
|
1022 } |
|
1023 |
|
1024 MAKERNOTE_CANON_TAGS = { |
|
1025 0x0006: ('ImageType', ), |
|
1026 0x0007: ('FirmwareVersion', ), |
|
1027 0x0008: ('ImageNumber', ), |
|
1028 0x0009: ('OwnerName', ), |
|
1029 } |
|
1030 |
|
1031 # this is in element offset, name, optional value dictionary format |
|
1032 MAKERNOTE_CANON_TAG_0x001 = { |
|
1033 1: ('Macromode', |
|
1034 {1: 'Macro', |
|
1035 2: 'Normal'}), |
|
1036 2: ('SelfTimer', ), |
|
1037 3: ('Quality', |
|
1038 {2: 'Normal', |
|
1039 3: 'Fine', |
|
1040 5: 'Superfine'}), |
|
1041 4: ('FlashMode', |
|
1042 {0: 'Flash Not Fired', |
|
1043 1: 'Auto', |
|
1044 2: 'On', |
|
1045 3: 'Red-Eye Reduction', |
|
1046 4: 'Slow Synchro', |
|
1047 5: 'Auto + Red-Eye Reduction', |
|
1048 6: 'On + Red-Eye Reduction', |
|
1049 16: 'external flash'}), |
|
1050 5: ('ContinuousDriveMode', |
|
1051 {0: 'Single Or Timer', |
|
1052 1: 'Continuous'}), |
|
1053 7: ('FocusMode', |
|
1054 {0: 'One-Shot', |
|
1055 1: 'AI Servo', |
|
1056 2: 'AI Focus', |
|
1057 3: 'MF', |
|
1058 4: 'Single', |
|
1059 5: 'Continuous', |
|
1060 6: 'MF'}), |
|
1061 10: ('ImageSize', |
|
1062 {0: 'Large', |
|
1063 1: 'Medium', |
|
1064 2: 'Small'}), |
|
1065 11: ('EasyShootingMode', |
|
1066 {0: 'Full Auto', |
|
1067 1: 'Manual', |
|
1068 2: 'Landscape', |
|
1069 3: 'Fast Shutter', |
|
1070 4: 'Slow Shutter', |
|
1071 5: 'Night', |
|
1072 6: 'B&W', |
|
1073 7: 'Sepia', |
|
1074 8: 'Portrait', |
|
1075 9: 'Sports', |
|
1076 10: 'Macro/Close-Up', |
|
1077 11: 'Pan Focus'}), |
|
1078 12: ('DigitalZoom', |
|
1079 {0: 'None', |
|
1080 1: '2x', |
|
1081 2: '4x'}), |
|
1082 13: ('Contrast', |
|
1083 {0xFFFF: 'Low', |
|
1084 0: 'Normal', |
|
1085 1: 'High'}), |
|
1086 14: ('Saturation', |
|
1087 {0xFFFF: 'Low', |
|
1088 0: 'Normal', |
|
1089 1: 'High'}), |
|
1090 15: ('Sharpness', |
|
1091 {0xFFFF: 'Low', |
|
1092 0: 'Normal', |
|
1093 1: 'High'}), |
|
1094 16: ('ISO', |
|
1095 {0: 'See ISOSpeedRatings Tag', |
|
1096 15: 'Auto', |
|
1097 16: '50', |
|
1098 17: '100', |
|
1099 18: '200', |
|
1100 19: '400'}), |
|
1101 17: ('MeteringMode', |
|
1102 {3: 'Evaluative', |
|
1103 4: 'Partial', |
|
1104 5: 'Center-weighted'}), |
|
1105 18: ('FocusType', |
|
1106 {0: 'Manual', |
|
1107 1: 'Auto', |
|
1108 3: 'Close-Up (Macro)', |
|
1109 8: 'Locked (Pan Mode)'}), |
|
1110 19: ('AFPointSelected', |
|
1111 {0x3000: 'None (MF)', |
|
1112 0x3001: 'Auto-Selected', |
|
1113 0x3002: 'Right', |
|
1114 0x3003: 'Center', |
|
1115 0x3004: 'Left'}), |
|
1116 20: ('ExposureMode', |
|
1117 {0: 'Easy Shooting', |
|
1118 1: 'Program', |
|
1119 2: 'Tv-priority', |
|
1120 3: 'Av-priority', |
|
1121 4: 'Manual', |
|
1122 5: 'A-DEP'}), |
|
1123 23: ('LongFocalLengthOfLensInFocalUnits', ), |
|
1124 24: ('ShortFocalLengthOfLensInFocalUnits', ), |
|
1125 25: ('FocalUnitsPerMM', ), |
|
1126 28: ('FlashActivity', |
|
1127 {0: 'Did Not Fire', |
|
1128 1: 'Fired'}), |
|
1129 29: ('FlashDetails', |
|
1130 {14: 'External E-TTL', |
|
1131 13: 'Internal Flash', |
|
1132 11: 'FP Sync Used', |
|
1133 7: '2nd("Rear")-Curtain Sync Used', |
|
1134 4: 'FP Sync Enabled'}), |
|
1135 32: ('FocusMode', |
|
1136 {0: 'Single', |
|
1137 1: 'Continuous'}), |
|
1138 } |
|
1139 |
|
1140 MAKERNOTE_CANON_TAG_0x004 = { |
|
1141 7: ('WhiteBalance', |
|
1142 {0: 'Auto', |
|
1143 1: 'Sunny', |
|
1144 2: 'Cloudy', |
|
1145 3: 'Tungsten', |
|
1146 4: 'Fluorescent', |
|
1147 5: 'Flash', |
|
1148 6: 'Custom'}), |
|
1149 9: ('SequenceNumber', ), |
|
1150 14: ('AFPointUsed', ), |
|
1151 15: ('FlashBias', |
|
1152 {0xFFC0: '-2 EV', |
|
1153 0xFFCC: '-1.67 EV', |
|
1154 0xFFD0: '-1.50 EV', |
|
1155 0xFFD4: '-1.33 EV', |
|
1156 0xFFE0: '-1 EV', |
|
1157 0xFFEC: '-0.67 EV', |
|
1158 0xFFF0: '-0.50 EV', |
|
1159 0xFFF4: '-0.33 EV', |
|
1160 0x0000: '0 EV', |
|
1161 0x000C: '0.33 EV', |
|
1162 0x0010: '0.50 EV', |
|
1163 0x0014: '0.67 EV', |
|
1164 0x0020: '1 EV', |
|
1165 0x002C: '1.33 EV', |
|
1166 0x0030: '1.50 EV', |
|
1167 0x0034: '1.67 EV', |
|
1168 0x0040: '2 EV'}), |
|
1169 19: ('SubjectDistance', ), |
|
1170 } |
|
1171 |
|
1172 # extract multibyte integer in Motorola format (little endian) |
|
1173 def s2n_motorola(str): |
|
1174 x = 0 |
|
1175 for c in str: |
|
1176 x = (x << 8) | ord(c) |
|
1177 return x |
|
1178 |
|
1179 # extract multibyte integer in Intel format (big endian) |
|
1180 def s2n_intel(str): |
|
1181 x = 0 |
|
1182 y = 0L |
|
1183 for c in str: |
|
1184 x = x | (ord(c) << y) |
|
1185 y = y + 8 |
|
1186 return x |
|
1187 |
|
1188 # ratio object that eventually will be able to reduce itself to lowest |
|
1189 # common denominator for printing |
|
1190 def gcd(a, b): |
|
1191 if b == 0: |
|
1192 return a |
|
1193 else: |
|
1194 return gcd(b, a % b) |
|
1195 |
|
1196 class Ratio: |
|
1197 def __init__(self, num, den): |
|
1198 self.num = num |
|
1199 self.den = den |
|
1200 |
|
1201 def __repr__(self): |
|
1202 self.reduce() |
|
1203 if self.den == 1: |
|
1204 return str(self.num) |
|
1205 return '%d/%d' % (self.num, self.den) |
|
1206 |
|
1207 def reduce(self): |
|
1208 div = gcd(self.num, self.den) |
|
1209 if div > 1: |
|
1210 self.num = self.num / div |
|
1211 self.den = self.den / div |
|
1212 |
|
1213 # for ease of dealing with tags |
|
1214 class IFD_Tag: |
|
1215 def __init__(self, printable, tag, field_type, values, field_offset, |
|
1216 field_length): |
|
1217 # printable version of data |
|
1218 self.printable = printable |
|
1219 # tag ID number |
|
1220 self.tag = tag |
|
1221 # field type as index into FIELD_TYPES |
|
1222 self.field_type = field_type |
|
1223 # offset of start of field in bytes from beginning of IFD |
|
1224 self.field_offset = field_offset |
|
1225 # length of data field in bytes |
|
1226 self.field_length = field_length |
|
1227 # either a string or array of data items |
|
1228 self.values = values |
|
1229 |
|
1230 def __str__(self): |
|
1231 return self.printable |
|
1232 |
|
1233 def __repr__(self): |
|
1234 return '(0x%04X) %s=%s @ %d' % (self.tag, |
|
1235 FIELD_TYPES[self.field_type][2], |
|
1236 self.printable, |
|
1237 self.field_offset) |
|
1238 |
|
1239 # class that handles an EXIF header |
|
1240 class EXIF_header: |
|
1241 def __init__(self, file, endian, offset, fake_exif, strict, debug=0): |
|
1242 self.file = file |
|
1243 self.mmap = mmap.mmap(file.fileno(), 0, access=mmap.ACCESS_READ) |
|
1244 self.endian = endian |
|
1245 self.offset = offset |
|
1246 self.fake_exif = fake_exif |
|
1247 self.strict = strict |
|
1248 self.debug = debug |
|
1249 self.tags = {} |
|
1250 |
|
1251 def pread(self, reloffset, length): |
|
1252 """Read <length> bytes from self.file at relative offset <offset>""" |
|
1253 |
|
1254 offset = self.offset + reloffset |
|
1255 |
|
1256 return self.mmap[offset:offset + length] |
|
1257 |
|
1258 # convert slice to integer, based on sign and endian flags |
|
1259 # usually this offset is assumed to be relative to the beginning of the |
|
1260 # start of the EXIF information. For some cameras that use relative tags, |
|
1261 # this offset may be relative to some other starting point. |
|
1262 def s2n(self, offset, length, signed=0): |
|
1263 slice=self.pread(offset, length) |
|
1264 if self.endian == 'I': |
|
1265 val=s2n_intel(slice) |
|
1266 else: |
|
1267 val=s2n_motorola(slice) |
|
1268 # Sign extension ? |
|
1269 if signed: |
|
1270 msb=1L << (8*length-1) |
|
1271 if val & msb: |
|
1272 val=val-(msb << 1) |
|
1273 return val |
|
1274 |
|
1275 # convert offset to string |
|
1276 def n2s(self, offset, length): |
|
1277 s = '' |
|
1278 for dummy in range(length): |
|
1279 if self.endian == 'I': |
|
1280 s = s + chr(offset & 0xFF) |
|
1281 else: |
|
1282 s = chr(offset & 0xFF) + s |
|
1283 offset = offset >> 8 |
|
1284 return s |
|
1285 |
|
1286 # return first IFD |
|
1287 def first_IFD(self): |
|
1288 return self.s2n(4, 4) |
|
1289 |
|
1290 # return pointer to next IFD |
|
1291 def next_IFD(self, ifd): |
|
1292 entries=self.s2n(ifd, 2) |
|
1293 return self.s2n(ifd+2+12*entries, 4) |
|
1294 |
|
1295 # return list of IFDs in header |
|
1296 def list_IFDs(self): |
|
1297 i=self.first_IFD() |
|
1298 a=[] |
|
1299 while i: |
|
1300 a.append(i) |
|
1301 i=self.next_IFD(i) |
|
1302 return a |
|
1303 |
|
1304 # return list of entries in this IFD |
|
1305 def dump_IFD(self, ifd, ifd_name, dict=EXIF_TAGS, relative=0, stop_tag='UNDEF'): |
|
1306 entries=self.s2n(ifd, 2) |
|
1307 for i in range(entries): |
|
1308 # entry is index of start of this IFD in the file |
|
1309 entry = ifd + 2 + 12 * i |
|
1310 tag = self.s2n(entry, 2) |
|
1311 |
|
1312 # get tag name early to avoid errors, help debug |
|
1313 tag_entry = dict.get(tag) |
|
1314 if tag_entry: |
|
1315 tag_name = tag_entry[0] |
|
1316 else: |
|
1317 tag_name = 'Tag 0x%04X' % tag |
|
1318 |
|
1319 # ignore certain tags for faster processing |
|
1320 if not (not detailed and tag in IGNORE_TAGS): |
|
1321 field_type = self.s2n(entry + 2, 2) |
|
1322 |
|
1323 # unknown field type |
|
1324 if not 0 < field_type < len(FIELD_TYPES): |
|
1325 if not self.strict: |
|
1326 continue |
|
1327 else: |
|
1328 raise ValueError('unknown type %d in tag 0x%04X' % (field_type, tag)) |
|
1329 |
|
1330 typelen = FIELD_TYPES[field_type][0] |
|
1331 count = self.s2n(entry + 4, 4) |
|
1332 # Adjust for tag id/type/count (2+2+4 bytes) |
|
1333 # Now we point at either the data or the 2nd level offset |
|
1334 offset = entry + 8 |
|
1335 |
|
1336 # If the value fits in 4 bytes, it is inlined, else we |
|
1337 # need to jump ahead again. |
|
1338 if count * typelen > 4: |
|
1339 # offset is not the value; it's a pointer to the value |
|
1340 # if relative we set things up so s2n will seek to the right |
|
1341 # place when it adds self.offset. Note that this 'relative' |
|
1342 # is for the Nikon type 3 makernote. Other cameras may use |
|
1343 # other relative offsets, which would have to be computed here |
|
1344 # slightly differently. |
|
1345 if relative: |
|
1346 tmp_offset = self.s2n(offset, 4) |
|
1347 offset = tmp_offset + ifd - 8 |
|
1348 if self.fake_exif: |
|
1349 offset = offset + 18 |
|
1350 else: |
|
1351 offset = self.s2n(offset, 4) |
|
1352 |
|
1353 field_offset = offset |
|
1354 if field_type == 2: |
|
1355 # special case: null-terminated ASCII string |
|
1356 # XXX investigate |
|
1357 # sometimes gets too big to fit in int value |
|
1358 if count != 0 and count < (2**31): |
|
1359 values = self.pread(offset, count) |
|
1360 #print values |
|
1361 # Drop any garbage after a null. |
|
1362 values = values.split('\x00', 1)[0] |
|
1363 else: |
|
1364 values = '' |
|
1365 else: |
|
1366 values = [] |
|
1367 signed = (field_type in [6, 8, 9, 10]) |
|
1368 |
|
1369 # XXX investigate |
|
1370 # some entries get too big to handle could be malformed |
|
1371 # file or problem with self.s2n |
|
1372 if count < 1000: |
|
1373 for dummy in range(count): |
|
1374 if field_type in (5, 10): |
|
1375 # a ratio |
|
1376 value = Ratio(self.s2n(offset, 4, signed), |
|
1377 self.s2n(offset + 4, 4, signed)) |
|
1378 else: |
|
1379 value = self.s2n(offset, typelen, signed) |
|
1380 values.append(value) |
|
1381 offset = offset + typelen |
|
1382 # The test above causes problems with tags that are |
|
1383 # supposed to have long values! Fix up one important case. |
|
1384 elif tag_name == 'MakerNote' : |
|
1385 for dummy in range(count): |
|
1386 value = self.s2n(offset, typelen, signed) |
|
1387 values.append(value) |
|
1388 offset = offset + typelen |
|
1389 #else : |
|
1390 # print "Warning: dropping large tag:", tag, tag_name |
|
1391 |
|
1392 # now 'values' is either a string or an array |
|
1393 if count == 1 and field_type != 2: |
|
1394 printable=str(values[0]) |
|
1395 elif count > 50 and len(values) > 20 : |
|
1396 printable=str( values[0:20] )[0:-1] + ", ... ]" |
|
1397 else: |
|
1398 printable=str(values) |
|
1399 |
|
1400 # compute printable version of values |
|
1401 if tag_entry: |
|
1402 if len(tag_entry) != 1: |
|
1403 # optional 2nd tag element is present |
|
1404 if callable(tag_entry[1]): |
|
1405 # call mapping function |
|
1406 printable = tag_entry[1](values) |
|
1407 else: |
|
1408 printable = '' |
|
1409 for i in values: |
|
1410 # use lookup table for this tag |
|
1411 printable += tag_entry[1].get(i, repr(i)) |
|
1412 |
|
1413 self.tags[ifd_name + ' ' + tag_name] = IFD_Tag(printable, tag, |
|
1414 field_type, |
|
1415 values, field_offset, |
|
1416 count * typelen) |
|
1417 if self.debug: |
|
1418 print ' debug: %s: %s' % (tag_name, |
|
1419 repr(self.tags[ifd_name + ' ' + tag_name])) |
|
1420 |
|
1421 if tag_name == stop_tag: |
|
1422 break |
|
1423 |
|
1424 # extract uncompressed TIFF thumbnail (like pulling teeth) |
|
1425 # we take advantage of the pre-existing layout in the thumbnail IFD as |
|
1426 # much as possible |
|
1427 def extract_TIFF_thumbnail(self, thumb_ifd): |
|
1428 entries = self.s2n(thumb_ifd, 2) |
|
1429 # this is header plus offset to IFD ... |
|
1430 if self.endian == 'M': |
|
1431 tiff = 'MM\x00*\x00\x00\x00\x08' |
|
1432 else: |
|
1433 tiff = 'II*\x00\x08\x00\x00\x00' |
|
1434 # ... plus thumbnail IFD data plus a null "next IFD" pointer |
|
1435 tiff += self.pread(thumb_ifd, entries*12+2)+'\x00\x00\x00\x00' |
|
1436 |
|
1437 # fix up large value offset pointers into data area |
|
1438 for i in range(entries): |
|
1439 entry = thumb_ifd + 2 + 12 * i |
|
1440 tag = self.s2n(entry, 2) |
|
1441 field_type = self.s2n(entry+2, 2) |
|
1442 typelen = FIELD_TYPES[field_type][0] |
|
1443 count = self.s2n(entry+4, 4) |
|
1444 oldoff = self.s2n(entry+8, 4) |
|
1445 # start of the 4-byte pointer area in entry |
|
1446 ptr = i * 12 + 18 |
|
1447 # remember strip offsets location |
|
1448 if tag == 0x0111: |
|
1449 strip_off = ptr |
|
1450 strip_len = count * typelen |
|
1451 # is it in the data area? |
|
1452 if count * typelen > 4: |
|
1453 # update offset pointer (nasty "strings are immutable" crap) |
|
1454 # should be able to say "tiff[ptr:ptr+4]=newoff" |
|
1455 newoff = len(tiff) |
|
1456 tiff = tiff[:ptr] + self.n2s(newoff, 4) + tiff[ptr+4:] |
|
1457 # remember strip offsets location |
|
1458 if tag == 0x0111: |
|
1459 strip_off = newoff |
|
1460 strip_len = 4 |
|
1461 # get original data and store it |
|
1462 tiff += self.pread(oldoff, count * typelen) |
|
1463 |
|
1464 # add pixel strips and update strip offset info |
|
1465 old_offsets = self.tags['Thumbnail StripOffsets'].values |
|
1466 old_counts = self.tags['Thumbnail StripByteCounts'].values |
|
1467 for i in range(len(old_offsets)): |
|
1468 # update offset pointer (more nasty "strings are immutable" crap) |
|
1469 offset = self.n2s(len(tiff), strip_len) |
|
1470 tiff = tiff[:strip_off] + offset + tiff[strip_off + strip_len:] |
|
1471 strip_off += strip_len |
|
1472 # add pixel strip to end |
|
1473 tiff += self.pread(old_offsets[i], old_counts[i]) |
|
1474 |
|
1475 self.tags['TIFFThumbnail'] = tiff |
|
1476 |
|
1477 # decode all the camera-specific MakerNote formats |
|
1478 |
|
1479 # Note is the data that comprises this MakerNote. The MakerNote will |
|
1480 # likely have pointers in it that point to other parts of the file. We'll |
|
1481 # use self.offset as the starting point for most of those pointers, since |
|
1482 # they are relative to the beginning of the file. |
|
1483 # |
|
1484 # If the MakerNote is in a newer format, it may use relative addressing |
|
1485 # within the MakerNote. In that case we'll use relative addresses for the |
|
1486 # pointers. |
|
1487 # |
|
1488 # As an aside: it's not just to be annoying that the manufacturers use |
|
1489 # relative offsets. It's so that if the makernote has to be moved by the |
|
1490 # picture software all of the offsets don't have to be adjusted. Overall, |
|
1491 # this is probably the right strategy for makernotes, though the spec is |
|
1492 # ambiguous. (The spec does not appear to imagine that makernotes would |
|
1493 # follow EXIF format internally. Once they did, it's ambiguous whether |
|
1494 # the offsets should be from the header at the start of all the EXIF info, |
|
1495 # or from the header at the start of the makernote.) |
|
1496 def decode_maker_note(self): |
|
1497 note = self.tags['EXIF MakerNote'] |
|
1498 |
|
1499 # Some apps use MakerNote tags but do not use a format for which we |
|
1500 # have a description, so just do a raw dump for these. |
|
1501 #if self.tags.has_key('Image Make'): |
|
1502 make = self.tags['Image Make'].printable |
|
1503 #else: |
|
1504 # make = '' |
|
1505 |
|
1506 # model = self.tags['Image Model'].printable # unused |
|
1507 |
|
1508 # Nikon |
|
1509 # The maker note usually starts with the word Nikon, followed by the |
|
1510 # type of the makernote (1 or 2, as a short). If the word Nikon is |
|
1511 # not at the start of the makernote, it's probably type 2, since some |
|
1512 # cameras work that way. |
|
1513 if 'NIKON' in make: |
|
1514 if note.values[0:7] == [78, 105, 107, 111, 110, 0, 1]: |
|
1515 if self.debug: |
|
1516 print "Looks like a type 1 Nikon MakerNote." |
|
1517 self.dump_IFD(note.field_offset+8, 'MakerNote', |
|
1518 dict=MAKERNOTE_NIKON_OLDER_TAGS) |
|
1519 elif note.values[0:7] == [78, 105, 107, 111, 110, 0, 2]: |
|
1520 if self.debug: |
|
1521 print "Looks like a labeled type 2 Nikon MakerNote" |
|
1522 if note.values[12:14] != [0, 42] and note.values[12:14] != [42L, 0L]: |
|
1523 raise ValueError("Missing marker tag '42' in MakerNote.") |
|
1524 # skip the Makernote label and the TIFF header |
|
1525 self.dump_IFD(note.field_offset+10+8, 'MakerNote', |
|
1526 dict=MAKERNOTE_NIKON_NEWER_TAGS, relative=1) |
|
1527 else: |
|
1528 # E99x or D1 |
|
1529 if self.debug: |
|
1530 print "Looks like an unlabeled type 2 Nikon MakerNote" |
|
1531 self.dump_IFD(note.field_offset, 'MakerNote', |
|
1532 dict=MAKERNOTE_NIKON_NEWER_TAGS) |
|
1533 return |
|
1534 |
|
1535 # Olympus |
|
1536 if make.startswith('OLYMPUS'): |
|
1537 self.dump_IFD(note.field_offset+8, 'MakerNote', |
|
1538 dict=MAKERNOTE_OLYMPUS_TAGS) |
|
1539 # XXX TODO |
|
1540 #for i in (('MakerNote Tag 0x2020', MAKERNOTE_OLYMPUS_TAG_0x2020),): |
|
1541 # self.decode_olympus_tag(self.tags[i[0]].values, i[1]) |
|
1542 #return |
|
1543 |
|
1544 # Casio |
|
1545 if 'CASIO' in make or 'Casio' in make: |
|
1546 self.dump_IFD(note.field_offset, 'MakerNote', |
|
1547 dict=MAKERNOTE_CASIO_TAGS) |
|
1548 return |
|
1549 |
|
1550 # Fujifilm |
|
1551 if make == 'FUJIFILM': |
|
1552 # bug: everything else is "Motorola" endian, but the MakerNote |
|
1553 # is "Intel" endian |
|
1554 endian = self.endian |
|
1555 self.endian = 'I' |
|
1556 # bug: IFD offsets are from beginning of MakerNote, not |
|
1557 # beginning of file header |
|
1558 offset = self.offset |
|
1559 self.offset += note.field_offset |
|
1560 # process note with bogus values (note is actually at offset 12) |
|
1561 self.dump_IFD(12, 'MakerNote', dict=MAKERNOTE_FUJIFILM_TAGS) |
|
1562 # reset to correct values |
|
1563 self.endian = endian |
|
1564 self.offset = offset |
|
1565 return |
|
1566 |
|
1567 # Canon |
|
1568 if make == 'Canon': |
|
1569 self.dump_IFD(note.field_offset, 'MakerNote', |
|
1570 dict=MAKERNOTE_CANON_TAGS) |
|
1571 for i in (('MakerNote Tag 0x0001', MAKERNOTE_CANON_TAG_0x001), |
|
1572 ('MakerNote Tag 0x0004', MAKERNOTE_CANON_TAG_0x004)): |
|
1573 self.canon_decode_tag(self.tags[i[0]].values, i[1]) |
|
1574 return |
|
1575 |
|
1576 |
|
1577 # XXX TODO decode Olympus MakerNote tag based on offset within tag |
|
1578 def olympus_decode_tag(self, value, dict): |
|
1579 pass |
|
1580 |
|
1581 # decode Canon MakerNote tag based on offset within tag |
|
1582 # see http://www.burren.cx/david/canon.html by David Burren |
|
1583 def canon_decode_tag(self, value, dict): |
|
1584 for i in range(1, len(value)): |
|
1585 x=dict.get(i, ('Unknown', )) |
|
1586 if self.debug: |
|
1587 print i, x |
|
1588 name=x[0] |
|
1589 if len(x) > 1: |
|
1590 val=x[1].get(value[i], 'Unknown') |
|
1591 else: |
|
1592 val=value[i] |
|
1593 # it's not a real IFD Tag but we fake one to make everybody |
|
1594 # happy. this will have a "proprietary" type |
|
1595 self.tags['MakerNote '+name]=IFD_Tag(str(val), None, 0, None, |
|
1596 None, None) |
|
1597 |
|
1598 # process an image file (expects an open file object) |
|
1599 # this is the function that has to deal with all the arbitrary nasty bits |
|
1600 # of the EXIF standard |
|
1601 def process_file(f, stop_tag='UNDEF', details=True, strict=False, debug=False): |
|
1602 # yah it's cheesy... |
|
1603 global detailed |
|
1604 detailed = details |
|
1605 |
|
1606 # by default do not fake an EXIF beginning |
|
1607 fake_exif = 0 |
|
1608 |
|
1609 # determine whether it's a JPEG or TIFF |
|
1610 data = f.read(12) |
|
1611 if data[0:4] in ['II*\x00', 'MM\x00*']: |
|
1612 # it's a TIFF file |
|
1613 f.seek(0) |
|
1614 endian = f.read(1) |
|
1615 f.read(1) |
|
1616 offset = 0 |
|
1617 elif data[0:2] == '\xFF\xD8': |
|
1618 # it's a JPEG file |
|
1619 while data[2] == '\xFF' and data[6:10] in ('JFIF', 'JFXX', 'OLYM', 'Phot'): |
|
1620 length = ord(data[4])*256+ord(data[5]) |
|
1621 f.read(length-8) |
|
1622 # fake an EXIF beginning of file |
|
1623 data = '\xFF\x00'+f.read(10) |
|
1624 fake_exif = 1 |
|
1625 if data[2] == '\xFF' and data[6:10] == 'Exif': |
|
1626 # detected EXIF header |
|
1627 offset = f.tell() |
|
1628 endian = f.read(1) |
|
1629 else: |
|
1630 # no EXIF information |
|
1631 return {} |
|
1632 else: |
|
1633 # file format not recognized |
|
1634 return {} |
|
1635 |
|
1636 # deal with the EXIF info we found |
|
1637 if debug: |
|
1638 print {'I': 'Intel', 'M': 'Motorola'}[endian], 'format' |
|
1639 hdr = EXIF_header(f, endian, offset, fake_exif, strict, debug) |
|
1640 ifd_list = hdr.list_IFDs() |
|
1641 ctr = 0 |
|
1642 for i in ifd_list: |
|
1643 if ctr == 0: |
|
1644 IFD_name = 'Image' |
|
1645 elif ctr == 1: |
|
1646 IFD_name = 'Thumbnail' |
|
1647 thumb_ifd = i |
|
1648 else: |
|
1649 IFD_name = 'IFD %d' % ctr |
|
1650 if debug: |
|
1651 print ' IFD %d (%s) at offset %d:' % (ctr, IFD_name, i) |
|
1652 hdr.dump_IFD(i, IFD_name, stop_tag=stop_tag) |
|
1653 # EXIF IFD |
|
1654 exif_off = hdr.tags.get(IFD_name+' ExifOffset') |
|
1655 if exif_off: |
|
1656 if debug: |
|
1657 print ' EXIF SubIFD at offset %d:' % exif_off.values[0] |
|
1658 hdr.dump_IFD(exif_off.values[0], 'EXIF', stop_tag=stop_tag) |
|
1659 # Interoperability IFD contained in EXIF IFD |
|
1660 intr_off = hdr.tags.get('EXIF SubIFD InteroperabilityOffset') |
|
1661 if intr_off: |
|
1662 if debug: |
|
1663 print ' EXIF Interoperability SubSubIFD at offset %d:' \ |
|
1664 % intr_off.values[0] |
|
1665 hdr.dump_IFD(intr_off.values[0], 'EXIF Interoperability', |
|
1666 dict=INTR_TAGS, stop_tag=stop_tag) |
|
1667 # GPS IFD |
|
1668 gps_off = hdr.tags.get(IFD_name+' GPSInfo') |
|
1669 if gps_off: |
|
1670 if debug: |
|
1671 print ' GPS SubIFD at offset %d:' % gps_off.values[0] |
|
1672 hdr.dump_IFD(gps_off.values[0], 'GPS', dict=GPS_TAGS, stop_tag=stop_tag) |
|
1673 ctr += 1 |
|
1674 |
|
1675 # extract uncompressed TIFF thumbnail |
|
1676 thumb = hdr.tags.get('Thumbnail Compression') |
|
1677 if thumb and thumb.printable == 'Uncompressed TIFF': |
|
1678 hdr.extract_TIFF_thumbnail(thumb_ifd) |
|
1679 |
|
1680 # JPEG thumbnail (thankfully the JPEG data is stored as a unit) |
|
1681 thumb_off = hdr.tags.get('Thumbnail JPEGInterchangeFormat') |
|
1682 if thumb_off: |
|
1683 f.seek(offset+thumb_off.values[0]) |
|
1684 size = hdr.tags['Thumbnail JPEGInterchangeFormatLength'].values[0] |
|
1685 hdr.tags['JPEGThumbnail'] = f.read(size) |
|
1686 |
|
1687 # deal with MakerNote contained in EXIF IFD |
|
1688 # (Some apps use MakerNote tags but do not use a format for which we |
|
1689 # have a description, do not process these). |
|
1690 if 'EXIF MakerNote' in hdr.tags and 'Image Make' in hdr.tags and detailed: |
|
1691 hdr.decode_maker_note() |
|
1692 |
|
1693 # Sometimes in a TIFF file, a JPEG thumbnail is hidden in the MakerNote |
|
1694 # since it's not allowed in a uncompressed TIFF IFD |
|
1695 if 'JPEGThumbnail' not in hdr.tags: |
|
1696 thumb_off=hdr.tags.get('MakerNote JPEGThumbnail') |
|
1697 if thumb_off: |
|
1698 f.seek(offset+thumb_off.values[0]) |
|
1699 hdr.tags['JPEGThumbnail']=file.read(thumb_off.field_length) |
|
1700 |
|
1701 return hdr.tags |
|
1702 |
|
1703 |
|
1704 # show command line usage |
|
1705 def usage(exit_status): |
|
1706 msg = 'Usage: EXIF.py [OPTIONS] file1 [file2 ...]\n' |
|
1707 msg += 'Extract EXIF information from digital camera image files.\n\nOptions:\n' |
|
1708 msg += '-q --quick Do not process MakerNotes.\n' |
|
1709 msg += '-t TAG --stop-tag TAG Stop processing when this tag is retrieved.\n' |
|
1710 msg += '-s --strict Run in strict mode (stop on errors).\n' |
|
1711 msg += '-d --debug Run in debug mode (display extra info).\n' |
|
1712 print msg |
|
1713 sys.exit(exit_status) |
|
1714 |
|
1715 # library test/debug function (dump given files) |
|
1716 if __name__ == '__main__': |
|
1717 import sys |
|
1718 import getopt |
|
1719 |
|
1720 # parse command line options/arguments |
|
1721 try: |
|
1722 opts, args = getopt.getopt(sys.argv[1:], "hqsdt:v", ["help", "quick", "strict", "debug", "stop-tag="]) |
|
1723 except getopt.GetoptError: |
|
1724 usage(2) |
|
1725 if args == []: |
|
1726 usage(2) |
|
1727 detailed = True |
|
1728 stop_tag = 'UNDEF' |
|
1729 debug = False |
|
1730 strict = False |
|
1731 for o, a in opts: |
|
1732 if o in ("-h", "--help"): |
|
1733 usage(0) |
|
1734 if o in ("-q", "--quick"): |
|
1735 detailed = False |
|
1736 if o in ("-t", "--stop-tag"): |
|
1737 stop_tag = a |
|
1738 if o in ("-s", "--strict"): |
|
1739 strict = True |
|
1740 if o in ("-d", "--debug"): |
|
1741 debug = True |
|
1742 |
|
1743 # output info for each file |
|
1744 for filename in args: |
|
1745 try: |
|
1746 file=open(filename, 'rb') |
|
1747 except: |
|
1748 print "'%s' is unreadable\n"%filename |
|
1749 continue |
|
1750 print filename + ':' |
|
1751 # get the tags |
|
1752 data = process_file(file, stop_tag=stop_tag, details=detailed, strict=strict, debug=debug) |
|
1753 if not data: |
|
1754 print 'No EXIF information found' |
|
1755 continue |
|
1756 |
|
1757 x=data.keys() |
|
1758 x.sort() |
|
1759 for i in x: |
|
1760 if i in ('JPEGThumbnail', 'TIFFThumbnail'): |
|
1761 continue |
|
1762 try: |
|
1763 print ' %s (%s): %s' % \ |
|
1764 (i, FIELD_TYPES[data[i].field_type][2], data[i].printable) |
|
1765 except: |
|
1766 print 'error', i, '"', data[i], '"' |
|
1767 if 'JPEGThumbnail' in data: |
|
1768 print 'File has JPEG thumbnail' |
|
1769 print |
|
1770 |
|