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Support extraction of ICC Profile and Photoshop settings embedded in IFD0 of TIFF file #341

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Merged
drewnoakes merged 1 commit into from
Apr 19, 2018
Merged

Support extraction of ICC Profile and Photoshop settings embedded in IFD0 of TIFF file #341

drewnoakes merged 1 commit into from
Apr 19, 2018

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@nagix
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@nagix nagix commented Apr 18, 2018

Problem

The Photoshop settings (tag 0x8649) and ICC Profile (tag 0x8773) embedded in IFD0 of TIFF files are not extracted into directories. For example:

[Exif IFD0] New Subfile Type = Full-resolution image
[Exif IFD0] Image Width = 128 pixels
[Exif IFD0] Image Height = 174 pixels
[Exif IFD0] Bits Per Sample = 8 8 8 bits/component/pixel
[Exif IFD0] Compression = LZW
[Exif IFD0] Photometric Interpretation = RGB
[Exif IFD0] Strip Offsets = 23876
[Exif IFD0] Orientation = Top, left side (Horizontal / normal)
[Exif IFD0] Samples Per Pixel = 3 samples/pixel
[Exif IFD0] Rows Per Strip = 174 rows/strip
[Exif IFD0] Strip Byte Counts = 26556 bytes
[Exif IFD0] X Resolution = 72009/1000 dots per inch
[Exif IFD0] Y Resolution = 72009/1000 dots per inch
[Exif IFD0] Planar Configuration = Chunky (contiguous for each subsampling pixel)
[Exif IFD0] Resolution Unit = Inch
[Exif IFD0] Software = Adobe Photoshop CS2 Windows
[Exif IFD0] Date/Time = 2016:02:05 01:25:42
[Exif IFD0] Predictor = 2
[Exif IFD0] Unknown tag (0x8649) = [5390 values]
[Exif IFD0] Inter Color Profile = [3144 values]
[XMP] XMP Value Count = 21
[Exif SubIFD] Color Space = sRGB
[Exif SubIFD] Exif Image Width = 128 pixels
[Exif SubIFD] Exif Image Height = 174 pixels
[File Type] Detected File Type Name = ARW
[File Type] Detected File Type Long Name = Sony Camera Raw
[File Type] Expected File Name Extension = arw
[File] File Name = rose-128x174-24bit-lzw.tiff
[File] File Size = 50476 bytes
[File] File Modified Date = Fri Mar 30 13:04:44 +00:00 2018

Solution

Add custom processing code in ExifTiffHandler.customProcessTag(). The result is:

[Exif IFD0] New Subfile Type = Full-resolution image
[Exif IFD0] Image Width = 128 pixels
[Exif IFD0] Image Height = 174 pixels
[Exif IFD0] Bits Per Sample = 8 8 8 bits/component/pixel
[Exif IFD0] Compression = LZW
[Exif IFD0] Photometric Interpretation = RGB
[Exif IFD0] Strip Offsets = 23876
[Exif IFD0] Orientation = Top, left side (Horizontal / normal)
[Exif IFD0] Samples Per Pixel = 3 samples/pixel
[Exif IFD0] Rows Per Strip = 174 rows/strip
[Exif IFD0] Strip Byte Counts = 26556 bytes
[Exif IFD0] X Resolution = 72009/1000 dots per inch
[Exif IFD0] Y Resolution = 72009/1000 dots per inch
[Exif IFD0] Planar Configuration = Chunky (contiguous for each subsampling pixel)
[Exif IFD0] Resolution Unit = Inch
[Exif IFD0] Software = Adobe Photoshop CS2 Windows
[Exif IFD0] Date/Time = 2016:02:05 01:25:42
[Exif IFD0] Predictor = 2
[XMP] XMP Value Count = 21
[Photoshop] Caption Digest = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
[Photoshop] Resolution Info = 72.01x72.01 DPI
[Photoshop] Print Scale = Centered, Scale 1.0
[Photoshop] Global Angle = 30
[Photoshop] Global Altitude = 30
[Photoshop] Print Flags = 0 0 0 0 0 0 0 0 1
[Photoshop] Copyright Flag = No
[Photoshop] Print Flags Information = 0 1 0 0 0 0 0 0 0 2
[Photoshop] Color Halftoning Information = [72 values]
[Photoshop] Color Transfer Functions = [112 values]
[Photoshop] Layer State Information = 0 0
[Photoshop] Layers Group Information = 0 0
[Photoshop] Layer Groups Enabled ID = 1
[Photoshop] Layer Selection IDs = 0 1 0 0 0 3
[Photoshop] Grid and Guides Information = 0 0 0 1 0 0 2 64 0 0 2 64 0 0 0 0
[Photoshop] URL List = 0
[Photoshop] Slices = flower-rose-red-transparent-background-0128-10030.tiff (0,0,174,128) 1 Slices
[Photoshop] Pixel Aspect Ratio = 1.0
[Photoshop] Seed Number = 4
[Photoshop] Thumbnail Data = JpegRGB, 118x160, Decomp 56960 bytes, 1572865 bpp, 3786 bytes
[Photoshop] Version Info = 1 (Adobe Photoshop, Adobe Photoshop CS2) 1
[Exif SubIFD] Color Space = sRGB
[Exif SubIFD] Exif Image Width = 128 pixels
[Exif SubIFD] Exif Image Height = 174 pixels
[ICC Profile] Profile Size = 3144
[ICC Profile] CMM Type = Lino
[ICC Profile] Version = 2.1.0
[ICC Profile] Class = Display Device
[ICC Profile] Color space = RGB 
[ICC Profile] Profile Connection Space = XYZ 
[ICC Profile] Profile Date/Time = 1998:02:09 06:49:00
[ICC Profile] Signature = acsp
[ICC Profile] Primary Platform = Microsoft Corporation
[ICC Profile] Device manufacturer = IEC 
[ICC Profile] Device model = sRGB
[ICC Profile] XYZ values = 0.964 1 0.825
[ICC Profile] Tag Count = 17
[ICC Profile] Copyright = Copyright (c) 1998 Hewlett-Packard Company
[ICC Profile] Profile Description = sRGB IEC61966-2.1
[ICC Profile] Media White Point = (0.9505, 1, 1.0891)
[ICC Profile] Media Black Point = (0, 0, 0)
[ICC Profile] Red Colorant = (0.4361, 0.2225, 0.0139)
[ICC Profile] Green Colorant = (0.3851, 0.7169, 0.0971)
[ICC Profile] Blue Colorant = (0.1431, 0.0606, 0.7141)
[ICC Profile] Device Mfg Description = IEC http://www.iec.ch
[ICC Profile] Device Model Description = IEC 61966-2.1 Default RGB colour space - sRGB
[ICC Profile] Viewing Conditions Description = Reference Viewing Condition in IEC61966-2.1
[ICC Profile] Viewing Conditions = view (0x76696577): 36 bytes
[ICC Profile] Luminance = (76.0365, 80, 87.1246)
[ICC Profile] Measurement = 1931 2° Observer, Backing (0, 0, 0), Geometry Unknown, Flare 1%, Illuminant D65
[ICC Profile] Technology = CRT 
[ICC Profile] Red TRC = 0.0, 0.0000763, 0.0001526, 0.0002289, 0.0003052, 0.0003815, 0.0004578, 0.0005341, 0.0006104, 0.0006867, 0.000763, 0.0008392, 0.0009003, 0.0009766, 0.0010529, 0.0011292, 0.0012055, 0.0012818, 0.0013581, 0.0014343, 0.0015106, 0.0015869, 0.0016632, 0.0017395, 0.0018158, 0.0018921, 0.0019684, 0.0020447, 0.002121, 0.0021973, 0.0022736, 0.0023499, 0.0024262, 0.0025025, 0.0025788, 0.0026551, 0.0027161, 0.0027924, 0.0028687, 0.002945, 0.0030213, 0.0030976, 0.0031739, 0.0032502, 0.0033417, 0.003418, 0.0034943, 0.0035859, 0.0036622, 0.0037537, 0.00383, 0.0039216, 0.0040131, 0.0041047, 0.0041962, 0.0042878, 0.0043793, 0.0044709, 0.0045624, 0.0046693, 0.0047608, 0.0048524, 0.0049592, 0.005066, 0.0051575, 0.0052644, 0.0053712, 0.005478, 0.0055848, 0.0056916, 0.0057984, 0.0059052, 0.0060273, 0.0061341, 0.0062562, 0.006363, 0.0064851, 0.0066072, 0.0067292, 0.0068513, 0.0069734, 0.0070954, 0.0072175, 0.0073396, 0.0074617, 0.007599, 0.0077211, 0.0078584, 0.0079957, 0.0081178, 0.0082551, 0.0083925, 0.0085298, 0.0086671, 0.0088...
[ICC Profile] Green TRC = 0.0, 0.0000763, 0.0001526, 0.0002289, 0.0003052, 0.0003815, 0.0004578, 0.0005341, 0.0006104, 0.0006867, 0.000763, 0.0008392, 0.0009003, 0.0009766, 0.0010529, 0.0011292, 0.0012055, 0.0012818, 0.0013581, 0.0014343, 0.0015106, 0.0015869, 0.0016632, 0.0017395, 0.0018158, 0.0018921, 0.0019684, 0.0020447, 0.002121, 0.0021973, 0.0022736, 0.0023499, 0.0024262, 0.0025025, 0.0025788, 0.0026551, 0.0027161, 0.0027924, 0.0028687, 0.002945, 0.0030213, 0.0030976, 0.0031739, 0.0032502, 0.0033417, 0.003418, 0.0034943, 0.0035859, 0.0036622, 0.0037537, 0.00383, 0.0039216, 0.0040131, 0.0041047, 0.0041962, 0.0042878, 0.0043793, 0.0044709, 0.0045624, 0.0046693, 0.0047608, 0.0048524, 0.0049592, 0.005066, 0.0051575, 0.0052644, 0.0053712, 0.005478, 0.0055848, 0.0056916, 0.0057984, 0.0059052, 0.0060273, 0.0061341, 0.0062562, 0.006363, 0.0064851, 0.0066072, 0.0067292, 0.0068513, 0.0069734, 0.0070954, 0.0072175, 0.0073396, 0.0074617, 0.007599, 0.0077211, 0.0078584, 0.0079957, 0.0081178, 0.0082551, 0.0083925, 0.0085298, 0.0086671, 0.0088...
[ICC Profile] Blue TRC = 0.0, 0.0000763, 0.0001526, 0.0002289, 0.0003052, 0.0003815, 0.0004578, 0.0005341, 0.0006104, 0.0006867, 0.000763, 0.0008392, 0.0009003, 0.0009766, 0.0010529, 0.0011292, 0.0012055, 0.0012818, 0.0013581, 0.0014343, 0.0015106, 0.0015869, 0.0016632, 0.0017395, 0.0018158, 0.0018921, 0.0019684, 0.0020447, 0.002121, 0.0021973, 0.0022736, 0.0023499, 0.0024262, 0.0025025, 0.0025788, 0.0026551, 0.0027161, 0.0027924, 0.0028687, 0.002945, 0.0030213, 0.0030976, 0.0031739, 0.0032502, 0.0033417, 0.003418, 0.0034943, 0.0035859, 0.0036622, 0.0037537, 0.00383, 0.0039216, 0.0040131, 0.0041047, 0.0041962, 0.0042878, 0.0043793, 0.0044709, 0.0045624, 0.0046693, 0.0047608, 0.0048524, 0.0049592, 0.005066, 0.0051575, 0.0052644, 0.0053712, 0.005478, 0.0055848, 0.0056916, 0.0057984, 0.0059052, 0.0060273, 0.0061341, 0.0062562, 0.006363, 0.0064851, 0.0066072, 0.0067292, 0.0068513, 0.0069734, 0.0070954, 0.0072175, 0.0073396, 0.0074617, 0.007599, 0.0077211, 0.0078584, 0.0079957, 0.0081178, 0.0082551, 0.0083925, 0.0085298, 0.0086671, 0.0088...
[File Type] Detected File Type Name = ARW
[File Type] Detected File Type Long Name = Sony Camera Raw
[File Type] Expected File Name Extension = arw
[File] File Name = rose-128x174-24bit-lzw.tiff
[File] File Size = 50476 bytes
[File] File Modified Date = Fri Mar 30 13:04:44 +00:00 2018

@nagix
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nagix commented Apr 18, 2018 •
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I just noticed this was discussed in #294. Currently, PhotoshopTiffHandler is only used for Photoshop EPS files to read nested XMP/Photoshop/ICC tags, but normal TIFF files could have those Photoshop-specific tags if they are written by Photoshop like the example above. Do we need to separate PhotoshopTiffHandler from ExifTiffHandler?

Actually, ExifTiffHandler already supports extraction of nested XMP and IPTC tags as TAG_APPLICATION_NOTES (0x02BC) and TAG_IPTC_NAA (0x83BB) respectively.

@drewnoakes drewnoakes merged commit 8a1405c into drewnoakes:master Apr 19, 2018
@drewnoakes
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drewnoakes commented Apr 19, 2018

I think the approach you've taken is most consistent with what we already have. Nice one.

@nagix nagix deleted the issue-341 branch April 19, 2018 23:43
@paperboyo paperboyo mentioned this pull request May 31, 2019
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@nagix @drewnoakes