/usr/lib/python3/dist-packages/PIL/TiffTags.py is in python3-pil 5.1.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# The Python Imaging Library.
# $Id$
#
# TIFF tags
#
# This module provides clear-text names for various well-known
# TIFF tags. the TIFF codec works just fine without it.
#
# Copyright (c) Secret Labs AB 1999.
#
# See the README file for information on usage and redistribution.
#
##
# This module provides constants and clear-text names for various
# well-known TIFF tags.
##
from collections import namedtuple
class TagInfo(namedtuple("_TagInfo", "value name type length enum")):
__slots__ = []
def __new__(cls, value=None, name="unknown", type=None, length=None, enum=None):
return super(TagInfo, cls).__new__(
cls, value, name, type, length, enum or {})
def cvt_enum(self, value):
return self.enum.get(value, value)
def lookup(tag):
"""
:param tag: Integer tag number
:returns: Taginfo namedtuple, From the TAGS_V2 info if possible,
otherwise just populating the value and name from TAGS.
If the tag is not recognized, "unknown" is returned for the name
"""
return TAGS_V2.get(tag, TagInfo(tag, TAGS.get(tag, 'unknown')))
##
# Map tag numbers to tag info.
#
# id: (Name, Type, Length, enum_values)
#
# The length here differs from the length in the tiff spec. For
# numbers, the tiff spec is for the number of fields returned. We
# agree here. For string-like types, the tiff spec uses the length of
# field in bytes. In Pillow, we are using the number of expected
# fields, in general 1 for string-like types.
BYTE = 1
ASCII = 2
SHORT = 3
LONG = 4
RATIONAL = 5
UNDEFINED = 7
SIGNED_RATIONAL = 10
DOUBLE = 12
TAGS_V2 = {
254: ("NewSubfileType", LONG, 1),
255: ("SubfileType", SHORT, 1),
256: ("ImageWidth", LONG, 1),
257: ("ImageLength", LONG, 1),
258: ("BitsPerSample", SHORT, 0),
259: ("Compression", SHORT, 1,
{"Uncompressed": 1, "CCITT 1d": 2, "Group 3 Fax": 3, "Group 4 Fax": 4,
"LZW": 5, "JPEG": 6, "PackBits": 32773}),
262: ("PhotometricInterpretation", SHORT, 1,
{"WhiteIsZero": 0, "BlackIsZero": 1, "RGB": 2, "RGB Palette": 3,
"Transparency Mask": 4, "CMYK": 5, "YCbCr": 6, "CieLAB": 8,
"CFA": 32803, # TIFF/EP, Adobe DNG
"LinearRaw": 32892}), # Adobe DNG
263: ("Threshholding", SHORT, 1),
264: ("CellWidth", SHORT, 1),
265: ("CellLength", SHORT, 1),
266: ("FillOrder", SHORT, 1),
269: ("DocumentName", ASCII, 1),
270: ("ImageDescription", ASCII, 1),
271: ("Make", ASCII, 1),
272: ("Model", ASCII, 1),
273: ("StripOffsets", LONG, 0),
274: ("Orientation", SHORT, 1),
277: ("SamplesPerPixel", SHORT, 1),
278: ("RowsPerStrip", LONG, 1),
279: ("StripByteCounts", LONG, 0),
280: ("MinSampleValue", LONG, 0),
281: ("MaxSampleValue", SHORT, 0),
282: ("XResolution", RATIONAL, 1),
283: ("YResolution", RATIONAL, 1),
284: ("PlanarConfiguration", SHORT, 1, {"Contiguous": 1, "Separate": 2}),
285: ("PageName", ASCII, 1),
286: ("XPosition", RATIONAL, 1),
287: ("YPosition", RATIONAL, 1),
288: ("FreeOffsets", LONG, 1),
289: ("FreeByteCounts", LONG, 1),
290: ("GrayResponseUnit", SHORT, 1),
291: ("GrayResponseCurve", SHORT, 0),
292: ("T4Options", LONG, 1),
293: ("T6Options", LONG, 1),
296: ("ResolutionUnit", SHORT, 1, {"none": 1, "inch": 2, "cm": 3}),
297: ("PageNumber", SHORT, 2),
301: ("TransferFunction", SHORT, 0),
305: ("Software", ASCII, 1),
306: ("DateTime", ASCII, 1),
315: ("Artist", ASCII, 1),
316: ("HostComputer", ASCII, 1),
317: ("Predictor", SHORT, 1, {"none": 1, "Horizontal Differencing": 2}),
318: ("WhitePoint", RATIONAL, 2),
319: ("PrimaryChromaticities", SHORT, 6),
320: ("ColorMap", SHORT, 0),
321: ("HalftoneHints", SHORT, 2),
322: ("TileWidth", LONG, 1),
323: ("TileLength", LONG, 1),
324: ("TileOffsets", LONG, 0),
325: ("TileByteCounts", LONG, 0),
332: ("InkSet", SHORT, 1),
333: ("InkNames", ASCII, 1),
334: ("NumberOfInks", SHORT, 1),
336: ("DotRange", SHORT, 0),
337: ("TargetPrinter", ASCII, 1),
338: ("ExtraSamples", SHORT, 0),
339: ("SampleFormat", SHORT, 0),
340: ("SMinSampleValue", DOUBLE, 0),
341: ("SMaxSampleValue", DOUBLE, 0),
342: ("TransferRange", SHORT, 6),
347: ("JPEGTables", UNDEFINED, 1),
# obsolete JPEG tags
512: ("JPEGProc", SHORT, 1),
513: ("JPEGInterchangeFormat", LONG, 1),
514: ("JPEGInterchangeFormatLength", LONG, 1),
515: ("JPEGRestartInterval", SHORT, 1),
517: ("JPEGLosslessPredictors", SHORT, 0),
518: ("JPEGPointTransforms", SHORT, 0),
519: ("JPEGQTables", LONG, 0),
520: ("JPEGDCTables", LONG, 0),
521: ("JPEGACTables", LONG, 0),
529: ("YCbCrCoefficients", RATIONAL, 3),
530: ("YCbCrSubSampling", SHORT, 2),
531: ("YCbCrPositioning", SHORT, 1),
532: ("ReferenceBlackWhite", LONG, 0),
700: ('XMP', BYTE, 1),
33432: ("Copyright", ASCII, 1),
34377: ('PhotoshopInfo', BYTE, 1),
# FIXME add more tags here
34665: ("ExifIFD", SHORT, 1),
34675: ('ICCProfile', UNDEFINED, 1),
34853: ('GPSInfoIFD', BYTE, 1),
# MPInfo
45056: ("MPFVersion", UNDEFINED, 1),
45057: ("NumberOfImages", LONG, 1),
45058: ("MPEntry", UNDEFINED, 1),
45059: ("ImageUIDList", UNDEFINED, 0), # UNDONE, check
45060: ("TotalFrames", LONG, 1),
45313: ("MPIndividualNum", LONG, 1),
45569: ("PanOrientation", LONG, 1),
45570: ("PanOverlap_H", RATIONAL, 1),
45571: ("PanOverlap_V", RATIONAL, 1),
45572: ("BaseViewpointNum", LONG, 1),
45573: ("ConvergenceAngle", SIGNED_RATIONAL, 1),
45574: ("BaselineLength", RATIONAL, 1),
45575: ("VerticalDivergence", SIGNED_RATIONAL, 1),
45576: ("AxisDistance_X", SIGNED_RATIONAL, 1),
45577: ("AxisDistance_Y", SIGNED_RATIONAL, 1),
45578: ("AxisDistance_Z", SIGNED_RATIONAL, 1),
45579: ("YawAngle", SIGNED_RATIONAL, 1),
45580: ("PitchAngle", SIGNED_RATIONAL, 1),
45581: ("RollAngle", SIGNED_RATIONAL, 1),
50741: ("MakerNoteSafety", SHORT, 1, {"Unsafe": 0, "Safe": 1}),
50780: ("BestQualityScale", RATIONAL, 1),
50838: ("ImageJMetaDataByteCounts", LONG, 0), # Can be more than one
50839: ("ImageJMetaData", UNDEFINED, 1) # see Issue #2006
}
# Legacy Tags structure
# these tags aren't included above, but were in the previous versions
TAGS = {347: 'JPEGTables',
700: 'XMP',
# Additional Exif Info
32932: 'Wang Annotation',
33434: 'ExposureTime',
33437: 'FNumber',
33445: 'MD FileTag',
33446: 'MD ScalePixel',
33447: 'MD ColorTable',
33448: 'MD LabName',
33449: 'MD SampleInfo',
33450: 'MD PrepDate',
33451: 'MD PrepTime',
33452: 'MD FileUnits',
33550: 'ModelPixelScaleTag',
33723: 'IptcNaaInfo',
33918: 'INGR Packet Data Tag',
33919: 'INGR Flag Registers',
33920: 'IrasB Transformation Matrix',
33922: 'ModelTiepointTag',
34264: 'ModelTransformationTag',
34377: 'PhotoshopInfo',
34735: 'GeoKeyDirectoryTag',
34736: 'GeoDoubleParamsTag',
34737: 'GeoAsciiParamsTag',
34850: 'ExposureProgram',
34852: 'SpectralSensitivity',
34855: 'ISOSpeedRatings',
34856: 'OECF',
34864: 'SensitivityType',
34865: 'StandardOutputSensitivity',
34866: 'RecommendedExposureIndex',
34867: 'ISOSpeed',
34868: 'ISOSpeedLatitudeyyy',
34869: 'ISOSpeedLatitudezzz',
34908: 'HylaFAX FaxRecvParams',
34909: 'HylaFAX FaxSubAddress',
34910: 'HylaFAX FaxRecvTime',
36864: 'ExifVersion',
36867: 'DateTimeOriginal',
36868: 'DateTImeDigitized',
37121: 'ComponentsConfiguration',
37122: 'CompressedBitsPerPixel',
37724: 'ImageSourceData',
37377: 'ShutterSpeedValue',
37378: 'ApertureValue',
37379: 'BrightnessValue',
37380: 'ExposureBiasValue',
37381: 'MaxApertureValue',
37382: 'SubjectDistance',
37383: 'MeteringMode',
37384: 'LightSource',
37385: 'Flash',
37386: 'FocalLength',
37396: 'SubjectArea',
37500: 'MakerNote',
37510: 'UserComment',
37520: 'SubSec',
37521: 'SubSecTimeOriginal',
37522: 'SubsecTimeDigitized',
40960: 'FlashPixVersion',
40961: 'ColorSpace',
40962: 'PixelXDimension',
40963: 'PixelYDimension',
40964: 'RelatedSoundFile',
40965: 'InteroperabilityIFD',
41483: 'FlashEnergy',
41484: 'SpatialFrequencyResponse',
41486: 'FocalPlaneXResolution',
41487: 'FocalPlaneYResolution',
41488: 'FocalPlaneResolutionUnit',
41492: 'SubjectLocation',
41493: 'ExposureIndex',
41495: 'SensingMethod',
41728: 'FileSource',
41729: 'SceneType',
41730: 'CFAPattern',
41985: 'CustomRendered',
41986: 'ExposureMode',
41987: 'WhiteBalance',
41988: 'DigitalZoomRatio',
41989: 'FocalLengthIn35mmFilm',
41990: 'SceneCaptureType',
41991: 'GainControl',
41992: 'Contrast',
41993: 'Saturation',
41994: 'Sharpness',
41995: 'DeviceSettingDescription',
41996: 'SubjectDistanceRange',
42016: 'ImageUniqueID',
42032: 'CameraOwnerName',
42033: 'BodySerialNumber',
42034: 'LensSpecification',
42035: 'LensMake',
42036: 'LensModel',
42037: 'LensSerialNumber',
42112: 'GDAL_METADATA',
42113: 'GDAL_NODATA',
42240: 'Gamma',
50215: 'Oce Scanjob Description',
50216: 'Oce Application Selector',
50217: 'Oce Identification Number',
50218: 'Oce ImageLogic Characteristics',
# Adobe DNG
50706: 'DNGVersion',
50707: 'DNGBackwardVersion',
50708: 'UniqueCameraModel',
50709: 'LocalizedCameraModel',
50710: 'CFAPlaneColor',
50711: 'CFALayout',
50712: 'LinearizationTable',
50713: 'BlackLevelRepeatDim',
50714: 'BlackLevel',
50715: 'BlackLevelDeltaH',
50716: 'BlackLevelDeltaV',
50717: 'WhiteLevel',
50718: 'DefaultScale',
50719: 'DefaultCropOrigin',
50720: 'DefaultCropSize',
50721: 'ColorMatrix1',
50722: 'ColorMatrix2',
50723: 'CameraCalibration1',
50724: 'CameraCalibration2',
50725: 'ReductionMatrix1',
50726: 'ReductionMatrix2',
50727: 'AnalogBalance',
50728: 'AsShotNeutral',
50729: 'AsShotWhiteXY',
50730: 'BaselineExposure',
50731: 'BaselineNoise',
50732: 'BaselineSharpness',
50733: 'BayerGreenSplit',
50734: 'LinearResponseLimit',
50735: 'CameraSerialNumber',
50736: 'LensInfo',
50737: 'ChromaBlurRadius',
50738: 'AntiAliasStrength',
50740: 'DNGPrivateData',
50778: 'CalibrationIlluminant1',
50779: 'CalibrationIlluminant2',
50784: 'Alias Layer Metadata'
}
def _populate():
for k, v in TAGS_V2.items():
# Populate legacy structure.
TAGS[k] = v[0]
if len(v) == 4:
for sk, sv in v[3].items():
TAGS[(k, sv)] = sk
TAGS_V2[k] = TagInfo(k, *v)
_populate()
##
# Map type numbers to type names -- defined in ImageFileDirectory.
TYPES = {}
# was:
# TYPES = {
# 1: "byte",
# 2: "ascii",
# 3: "short",
# 4: "long",
# 5: "rational",
# 6: "signed byte",
# 7: "undefined",
# 8: "signed short",
# 9: "signed long",
# 10: "signed rational",
# 11: "float",
# 12: "double",
# }
#
# These tags are handled by default in libtiff, without
# adding to the custom dictionary. From tif_dir.c, searching for
# case TIFFTAG in the _TIFFVSetField function:
# Line: item.
# 148: case TIFFTAG_SUBFILETYPE:
# 151: case TIFFTAG_IMAGEWIDTH:
# 154: case TIFFTAG_IMAGELENGTH:
# 157: case TIFFTAG_BITSPERSAMPLE:
# 181: case TIFFTAG_COMPRESSION:
# 202: case TIFFTAG_PHOTOMETRIC:
# 205: case TIFFTAG_THRESHHOLDING:
# 208: case TIFFTAG_FILLORDER:
# 214: case TIFFTAG_ORIENTATION:
# 221: case TIFFTAG_SAMPLESPERPIXEL:
# 228: case TIFFTAG_ROWSPERSTRIP:
# 238: case TIFFTAG_MINSAMPLEVALUE:
# 241: case TIFFTAG_MAXSAMPLEVALUE:
# 244: case TIFFTAG_SMINSAMPLEVALUE:
# 247: case TIFFTAG_SMAXSAMPLEVALUE:
# 250: case TIFFTAG_XRESOLUTION:
# 256: case TIFFTAG_YRESOLUTION:
# 262: case TIFFTAG_PLANARCONFIG:
# 268: case TIFFTAG_XPOSITION:
# 271: case TIFFTAG_YPOSITION:
# 274: case TIFFTAG_RESOLUTIONUNIT:
# 280: case TIFFTAG_PAGENUMBER:
# 284: case TIFFTAG_HALFTONEHINTS:
# 288: case TIFFTAG_COLORMAP:
# 294: case TIFFTAG_EXTRASAMPLES:
# 298: case TIFFTAG_MATTEING:
# 305: case TIFFTAG_TILEWIDTH:
# 316: case TIFFTAG_TILELENGTH:
# 327: case TIFFTAG_TILEDEPTH:
# 333: case TIFFTAG_DATATYPE:
# 344: case TIFFTAG_SAMPLEFORMAT:
# 361: case TIFFTAG_IMAGEDEPTH:
# 364: case TIFFTAG_SUBIFD:
# 376: case TIFFTAG_YCBCRPOSITIONING:
# 379: case TIFFTAG_YCBCRSUBSAMPLING:
# 383: case TIFFTAG_TRANSFERFUNCTION:
# 389: case TIFFTAG_REFERENCEBLACKWHITE:
# 393: case TIFFTAG_INKNAMES:
# some of these are not in our TAGS_V2 dict and were included from tiff.h
LIBTIFF_CORE = {255, 256, 257, 258, 259, 262, 263, 266, 274, 277,
278, 280, 281, 340, 341, 282, 283, 284, 286, 287,
296, 297, 321, 320, 338, 32995, 322, 323, 32998,
32996, 339, 32997, 330, 531, 530, 301, 532, 333,
# as above
269 # this has been in our tests forever, and works
}
LIBTIFF_CORE.remove(320) # Array of short, crashes
LIBTIFF_CORE.remove(301) # Array of short, crashes
LIBTIFF_CORE.remove(532) # Array of long, crashes
LIBTIFF_CORE.remove(255) # We don't have support for subfiletypes
LIBTIFF_CORE.remove(322) # We don't have support for tiled images in libtiff
LIBTIFF_CORE.remove(323) # Tiled images
LIBTIFF_CORE.remove(333) # Ink Names either
# Note to advanced users: There may be combinations of these
# parameters and values that when added properly, will work and
# produce valid tiff images that may work in your application.
# It is safe to add and remove tags from this set from Pillow's point
# of view so long as you test against libtiff.
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