"checkit_tiff" is an incredibly fast conformance checker for baseline TIFFs (with various extensions), see http://andreas-romeyke.de
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# tag; required; values
#
# works as whitelist
# * tag: any tag number in TIFF
# * required: mandatory | optional | depends( $tag.$value ) | optdepends( $tag.$value )
# * values: range($start, $end) | logical_or( $a, …) | only($a) |any
# This defines a sample config for baseline tiffs
# Remember, because it works as whitelist for each required tag we need an
# entry here
#####
# Required Baseline Tags
#####
# 256 0100 ImageWidth The number of columns in the image, i.e., the number of pixels per row.
256; mandatory; range(1, 4294967295)
# 257 0101 ImageLength The number of rows of pixels in the image.
257; mandatory; range(1, 4294967295)
# 258 0102 BitsPerSample Number of bits per component.
##########################258; mandatory; logical_or(8,16)
# Bitonal is optional, grey & RGB is mandatory. If 262 AND 258 exist, then the values need to be in the specified range.
258; optdepends(262.0); logical_or(1, 4, 8)
258; optdepends(262.1); logical_or(1, 4, 8)
#258; depends(262.2); logical_or(ntupel(8,8,8), ntupel(16,16,16))
# TODO: this field allows a different number of bits per component for each component corresponding to a pixel. For example, RGB color data could use a different number of bits per component for each of the three color planes.
258; depends(262.2); logical_or(ntupel(8,8,8), ntupel(16,16,16))
258; depends(262.3); logical_or(4, 8)
258; depends(262.8); only(8)
# 259 0103 Compression Compression scheme used on the image data
### (1 means no compression)
259; mandatory; logical_or(1, 2, 3, 4, 5, 6, 32773)
# 262 0106 PhotometricInterpretation The color space of the image data.
### 2 means RGB, 0 and 1 means bilevel or grayscale, 0 is unusual, 3 is Palette Color (NOT SUITABLE FOR LONG TERM PRESERVATION), 4 is Transparency Mask (NOT SUITABLE FOR LONG TERM PRESERVATION)
262; mandatory; logical_or(range(0, 6), only(8))
# 273 0111 StripOffsets For each strip, the byte offset of that strip.
273; mandatory; any
# 277 0115 SamplesPerPixel The number of components per pixel.
### if RGB then 3 else 1
### Even though Baseline TIFF allows for SamplesPerPixel>3, we do NOT allow this for long term archival.
277; depends(262.2); range(3, 10)
277; optdepends(262.1); only(1)
277; optdepends(262.0); only(1)
# 278 0116 RowsPerStrip The number of rows per strip.
278; mandatory; range(1, 4294967295)
# 279 0117 StripByteCounts For each strip, the number of bytes in the strip after compression.
279; mandatory; range(1, 4294967295)
# 282 011A XResolution The number of pixels per ResolutionUnit in the ImageWidth direction.
282; mandatory; range(0, 4294967295)
# 283 011B YResolution The number of pixels per ResolutionUnit in the ImageLength direction.
283; mandatory; range(0, 4294967295)
# 296 0128 ResolutionUnit The unit of measurement for XResolution and YResolution. 1 = No absolute unit of measurement. 2 = Inch. 3 = Centimeter. Default: 2
296; mandatory; range(1, 3)
#####
# optional fields
#####
# NO OTHER VALUES FROM THE RANGE (0 - 7) ARE ALLOWED. ONLY "0" IS SUITABLE FOR LONG TERM ARCHIVAL.
# 254 00FE NewSubfileType A general indication of the kind of data contained in this subfile. These values are defined as bit flags because they are independent of each other. Default is 0.
254; optional; range(0, 7)
# DO NOT UNCOMMENT! THIS TAG IS DEPRECATED! USE NEW SUBFILE TYPE INSTEAD!
# 255 00FF SubfileType A general indication of the kind of data contained in this subfile. This field is deprecated. The NewSubfileType field should be used instead.
255; optional; range(1, 3)
# DO NOT UNCOMMENT! THRESHOLDING IS NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 263 0107 Threshholding For black and white TIFF files that represent shades of gray, the technique used to convert from gray to black and white pixels. Default is 1.
263; optional; range(1, 3)
# DO NOT UNCOMMENT! CELL WIDTH IS NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 264 0108 CellWidth The width of the dithering or halftoning matrix used to create a dithered or halftoned bilevel file.
264; depends(263.2); any
# DO NOT UNCOMMENT! CELL LENGTH IS NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 265 0109 CellLength The length of the dithering or halftoning matrix used to create a dithered or halftoned bilevel file. This field should only be present if Threshholding = 2.
265; optdepends(263.2); any
### Support for FillOrder=2 is not required in a Baseline TIFF compliant reader. Default is 1.
# 266 010A FillOrder The logical order of bits within a byte.
266; optional; logical_or(1, 2)
# 269 010D Documentname
269; optional; regex("^[[:print:]]*$")
# 270 010E ImageDescription A string that describes the subject of the image.
270; optional; regex("^[[:print:]]*$")
# 271 010F Make The scanner manufacturer.
271; optional; regex("^[[:print:]]*$")
# 272 0110 Model The scanner model name or number.
272; optional; regex("^[[:print:]]*$")
# 274 0112 Orientation The orientation of the image with respect to the rows and columns. Default is 1, and only this value is Baseline TIFF conform.
# THIS IS NOT BASELINE TIFF!!!
274; optional; range(1, 8)
# 274; optional; only(1)
# 280 0118 MinSampleValue The minimum component value used. Default is 0.
280; optional; range(0, 65534)
# 281 0119 MaxSampleValue The maximum component value used; only for statistical purposes. Default is 2**(BitsPerSample) - 1.
281; optional; range(1, 65535)
# 284 011C PlanarConfiguration How the components of each pixel are stored. 1 = Chunky format. 2 = Planar format (not recommended for general interchange) and Baseline TIFF readers are not required to support it. Default: 1.
# If SamplesPerPixel is 1, PlanarConfiguration is irrelevant, and need not be included.
284; optional; logical_or(1, 2)
# 285 011D PageName The name of the page from which this image was scanned.
285; optional; regex("^[[:print:]]*$")
# 286 011E XPosition The X offset in ResolutionUnits of the left side of the image, with respect to the left side of the page.
285; optional; any
# 287 011F YPosition The Y offset in ResolutionUnits of the top of the image, with respect to the top of the page. In the TIFF coordinate scheme, the positive Y direction is down, so that YPosition is always positive.
285; optional; any
# FREE OFFSETS ARE NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 288 0120 FreeOffsets For each string of contiguous unused bytes in a TIFF file, the byte offset of the string. Not recommended for general interchange.
288; optional; any
# FREE BYTE COUNTS ARE NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 289 0121 FreeByteCounts For each string of contiguous unused bytes in a TIFF file, the number of bytes in the string. Not recommended for general interchange.
289; optional; any
# 290 0122 GrayResponseUnit The precision of the information contained in the GrayResponseCurve. Default: 2; Recommended: 3
290; optdepends(262.0); range(1, 5)
290; optdepends(262.1); range(1, 5)
# 291 0123 GrayResponseCurve For grayscale data, the optical density of each possible pixel value.
291; optdepends(262.0); any
291; optdepends(262.1); any
# 292 0124 T4Options Option flags for T4 compression. Default: 0
291; optdepends(259.3); range(0, 4294967296)
# 293 0125 T6Options Option flags for T4 compression. Default: 0
291; optdepends(259.4); range(0, 4294967296)
# 297 PageNumber actual page, and total pagecount, the actual page count starts with 0; Recommended: 0, 1
# 297; optional; ntupel(0,1)
297; optional; any
# 301 012D TransferFunction Describes a transfer function for the image in tabular style.
301; optdepends(262.2); any
# 305 0131 Software Name and version number of the software package(s) used to create the image.
305; optional; regex("^[[:print:]]*$")
# 306 0132 DateTime Date and time of image creation in the format "YYYY:MM:DD HH:MM:SS".
306; optional; regex("^[12][901][0-9][0-9]:[01][0-9]:[0-3][0-9] [012][0-9]:[0-5][0-9]:[0-6][0-9]$")
# ARTIST IS NOT SUITABLE FOR LONG TERM ARCHIVAL DUE TO PRIVACY CONCERNS!
# 315 013B Artist Person who created the image. Some older TIFF files used this tag for storing Copyright information.
315; optional; regex("^[[:print:]]*$")
# HOST COMPUTER INFORMATION IS NOT SUITABLE AND IRRELEVANT FOR LONG TERM ARCHIVAL!
# 316 013C HostComputer The computer and/or operating system in use at the time of image creation.
316; optional; regex("^[[:print:]]*$")
# 317 013D Predictor A predictor is a mathematical operator that is applied to the image data before an encoding scheme is applied. Currently this field is used only with LZW. Default: 1
316; optdepends(259.5); logical_or(1, 2)
# WhitePoint, if RGB, points to chromaticity of the white point of the image.This is the chromaticity
# when each of the primaries has its ReferenceWhite value. The value is described using the 1931 CIE
# xy chromaticity diagram and only the chromaticity is specified. This value can correspond to the
# chromaticity of the alignment white of a monitor, the filter set and light source combination of a
# scanner or the imaging model of a rendering package. The ordering is white[x], white[y].
# (Source: www.awaresystems.be)
# example: CIE Standard Illuminant D65 used by CCIR Recommendation 709 and Kodak PhotoYCC is:
# 3127/10000,3290/10000
318; optdepends(262.2); any
# PrimaryChromaticities, This is the chromaticity for each of the primaries when it has its ReferenceWhite
# value and the other primaries have their ReferenceBlack values. These values are described using the
# 1931 CIE xy chromaticity diagram and only the chromaticities are specified. These values can correspond
# to the chromaticities of the phosphors of a monitor, the filter set and light source combination of a
# scanner or the imaging model of a rendering package.
# (Source: www.awaresystems.be)
# The ordering is red[x], red[y], green[x], green[y], blue[x], and blue[y].
# For example the CCIR Recommendation 709 primaries are:
# 640/1000,330/1000,
# 300/1000, 600/1000,
# 150/1000, 60/1000
319; optdepends(262.2); any
# COLOR MAP TIFFS ARE NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 320 0140 ColorMap This field defines a Red-Green-Blue color map (often called a lookup table) for palette color images.
320; optional; any
# 321 0141 HalftoneHints The purpose of the HalftoneHints field is to convey to the halftone function the range of gray levels within a colorimetrically-specified image that should retain tonal detail.
321; optional; any
# 322 0142 TileWidth The tile width in pixels. This is the number of columns in each tile. Must be a multiple of 16.
322; optional; range(16, 4294967296)
# 323 0143 TileLength The tile length (height) in pixels. This is the number of rows in each tile. Must be a multiple of 16.
323; optional; range(16, 4294967296)
# 324 0144 TileOffsets For each tile, the byte offset of that tile, as compressed and stored on disk.
324; optional; range(1, 4294967296)
# 325 0145 TileByteCounts For each tile, the number of (compressed) bytes in that tile.
325; optional; range(1, 4294967296)
# 332 014C InkSet The set of inks used in a separated (PhotometricInterpretation=5) image. Default: 1
332; optdepends(262.5); logical_or(1, 2)
# 333 014D InkNames The name of each ink used in a separated (PhotometricInterpretation=5) image, written as a list of concatenated, NUL-terminated ASCII strings.
333; optdepends(262.5); regex("^[[:print:]]*$")
# 334 014E NumberOfInks The number of inks. Usually equal to SamplesPerPixel, unless there are extra samples. Default: 4
334; optional; range(1, 10)
# 336 0150 DotRange The component values that correspond to a 0% dot and 100% dot. DotRange[0] corresponds to a 0% dot, and DotRange[1] corresponds to a 100% dot.
336; optional; any
# 337 0151 TargetPrinter A description of the printing environment for which this separation is intended.
337; optional; regex("^[[:print:]]*$")
# EXTRA SAMPLES TIFFS ARE NOT SUITABLE FOR LONG TERM ARCHIVAL BECAUSE THEIR MEANING CANNOT BE DOCUMENTED!
# 338 0152 ExtraSamples Description of extra components.
338; optional; range(0, 2)
# 339 0153 SampleFormat This field specifies how to interpret each data sample in a pixel. Default: 1
339; optional; range(1, 4)
# 340 0154 SMinSampleValue This field specifies the minimum sample value.
340; optional; any
# 341 0155 SMaxSampleValue This field specifies the maximum sample value.
341; optional; any
# 342 0156 TransferRange Expands the range of the TransferFunction.
342; optdepends(262.2); any
# 512 0200 JPEGProc This Field indicates the JPEG process used to produce the compressed data.
512; depends(259.6); logical_or(1, 14)
# 513 0201 JPEGInterchangeFormat This Field indicates whether a JPEG interchange format bitstream is present in the TIFF file.
513; optdepends(259.6); any
# 514 0202 JPEGInterchangeFormatLength This Field indicates the length in bytes of the JPEG interchange format bitstream.
514; optdepends(259.6); any
# 515 0203 JPEGRestartInterval This Field indicates the length of the restart interval used in the compressed image data.
515; optdepends(259.6); any
# 517 0205 JPEGLosslessPredictors This Field points to a list of lossless predictor-selection values, one per component.
517; optdepends(259.6); range(1, 7)
# 517 0205 JPEGPointTransforms This Field points to a list of point transform values, one per component.
517; optdepends(259.6); any
# 519 0207 JPEGQTables This Field points to a list of offsets to the quantization tables, one per component.
519; optdepends(259.6); any
# 520 0208 JPEGDCTables This Field points to a list of offsets to the DC Huffman tables or the lossless Huffman tables, one per component.
520; optdepends(259.6); any
# 521 0209 JPEGACTables This Field points to a list of offsets to the Huffman AC tables, one per component.
521; optdepends(259.6); any
# 529 0211 YCbCrCoefficients The transformation from RGB to YCbCr image data.
529; optdepends(262.6); any
# 530 0212 YCbCrSubSampling Specifies the subsampling factors used for the chrominance components of a YCbCr image. The default values of this field are [ 2, 2 ].
#530; optdepends(262.6); logical_or(ntupel(1,1),ntupel(1,2),ntupel(1,4),ntupel(2,1),ntupel(2,2),ntupel(2,4),ntupel(4,1),ntupel(4,2),ntupel(4,4))
530; optdepends(262.6); any
# 531 0213 YCbCrPositioning Specifies the positioning of subsampled chrominance components relative to luminance samples.
531; optdepends(262.6); any
# 532 0214 ReferenceBlackWhite Specifies a pair of headroom and footroom image data values (codes) for each pixel component.
532; optdepends(262.2); any
# 700 02BC XMP XML packet containing XMP metadata.
700; optional; any
# 33432 8298 Copyright Complete copyright notice of the person or organization that claims the copyright to the image.
33432; optional; regex("^[[:print:]]*$")
# IPTC METADATA ARE NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 33723 83BB IPTC IPTC (International Press Telecommunications Council) metadata.
# http://www.iptc.org/download/download.php?fn=IIMV4.1.pdf
33723; optional; any
# PHOTOSHOP METADATA ARE PROPRIETARY AND HENCE NOT SUITABLE FOR LONG TERM ARCHIVAL!
# 34377 8649 Photoshop Collection of Photoshop 'Image Resource Blocks'.
34377; optional; any
# 34665 8769 Exif IFD A pointer to the Exif IFD. Exif IFD is a set of tags for recording Exif-specific attribute information. It is pointed to by the offset from the TIFF header (Value Offset) indicated by an Exif private tag value. An Exif IFD has the same structure as that of the IFD specified in TIFF. Ordinarily, however, it does not contain image data as in the case of TIFF.
34665; optional; any
# 34675 8773 ICC Profile ICC Profile data
34675; optional; any