GraphicsMagick -识别和删除附加的颜色配置文件
GraphicsMagick -识别和删除附加的颜色配置文件
提问于 2015-08-14 14:09:25
我有一些带有嵌入式颜色配置文件(示例是Canon EOS-1Ds flash)的tiff图像。当我将它们转换为jpeg (gm convert source.tif target.jpeg)时，产生的jpeg颜色在浏览器(Chrome、Firefox，而不是IE)中会被扭曲，而在系统图像查看器中则不会。
如果我在GIMP中打开源代码，并将颜色配置文件更改为sRGB，那么上述转换命令中的图像将在浏览器中正确显示。
所以我有个问题：
如何识别图像具有嵌入的颜色配置文件这一事实？
使用此命令，配置文件将被移除：
mogrify +profile '*' -define jpeg:preserve-settings这是gm identify -verbose source.tif的输出
Image: Di 2007-1337.tif
Format: TIFF (Tagged Image File Format)
Geometry: 4053x2257
Class: DirectClass
Type: true color
Depth: 8 bits-per-pixel component
Channel Depths:
Red: 8 bits
Green: 8 bits
Blue: 8 bits
Channel Statistics:
Red:
Minimum: 0.00 (0.0000)
Maximum: 255.00 (1.0000)
Mean: 135.75 (0.5324)
Standard Deviation: 72.49 (0.2843)
Green:
Minimum: 0.00 (0.0000)
Maximum: 255.00 (1.0000)
Mean: 129.79 (0.5090)
Standard Deviation: 72.87 (0.2858)
Blue:
Minimum: 0.00 (0.0000)
Maximum: 255.00 (1.0000)
Mean: 125.43 (0.4919)
Standard Deviation: 73.42 (0.2879)
Resolution: 400x400 pixels/inch
Filesize: 26.4M
Interlace: No
Orientation: Unknown
Background Color: white
Border Color: #DFDFDF
Matte Color: #BDBDBD
Compose: Over
Dispose: Undefined
Iterations: 0
Compression: No
Signature: bec78e9402b39f6f5539a640715270a651a39c2238846fa42f37c1c7d99af747
Profile-color: 219244 bytes
Profile-iptc: 4358 bytes
unknown:
Byline:
Rod
Source:
Rod
Created Date:
20061006
Created Time:
110014+0000
Originating Program:
Capture One PRO
Program Version:
3.7.1
unknown:
0x00000000: ffffff5c 2c3bff65 2dffff39 ffffff55 ff5bff27 ----\,;-e---9---U-[-
0x00000014: ffffffff ff7affff ffffff48 103a29ff ff17ff58 '-----z-----H-:)----
0x00000028: ff616363 3dffffff ffffffff ff777a63 6537ff19 X-acc=--------wzce7-
0x0000003c: ffffffff 3c57ffff ff3c6674 ffff5f67 ff71ffff -----<W---<
0x00000050: 74ffff5f 67ff71ff ff00 ft--_
Tainted: False
User Time: 0.030u
Elapsed Time: 0:01
Pixels Per Second: 290.8M转换后的图像在OS图像查看器中也会被破坏：
Format: TIFF (Tagged Image File Format)
Geometry: 4992x3328
Class: DirectClass
Type: true color
Depth: 8 bits-per-pixel component
Channel Depths:
Red: 8 bits
Green: 8 bits
Blue: 8 bits
Channel Statistics:
Red:
Minimum: 0.00 (0.0000)
Maximum: 255.00 (1.0000)
Mean: 213.55 (0.8374)
Standard Deviation: 57.03 (0.2237)
Green:
Minimum: 0.00 (0.0000)
Maximum: 255.00 (1.0000)
Mean: 40.76 (0.1598)
Standard Deviation: 92.06 (0.3610)
Blue:
Minimum: 0.00 (0.0000)
Maximum: 255.00 (1.0000)
Mean: 161.49 (0.6333)
Standard Deviation: 121.23 (0.4754)
Resolution: 300x300 pixels/inch
Filesize: 47.6M
Interlace: No
Orientation: TopLeft
Background Color: white
Border Color: #DFDFDF
Matte Color: #BDBDBD
Compose: Over
Dispose: Undefined
Iterations: 0
Compression: No
Artist: Gary
Timestamp: 2006:11:12 12:35:12
Make: Canon
Model: Canon EOS-1Ds Mark II
Software: Adobe Photoshop CS2 Macintosh
Signature: 1b26f2c2122ea6aa391a40c7eb885d0da120x8e9x5bd7ce0dc7cc9038ba99737
Profile-iptc: 12926 bytes
unknown:
Byline:
Gary Ombler
Originating Program:
Capture One PRO
Program Version:
3.7.3
unknown:
#Q�$�'���߸︥�[��Rҝ5��n�b����h�
Profile-XMP: 17293 bytes
Tainted: False
User Time: 0.140u
Elapsed Time: 0:01
Pixels Per Second: 45.3M回答 2
Stack Overflow用户
发布于 2015-10-08 04:26:16
gm identify -verbose *.tif | egrep -a '^Image|Profile-'这将打印所有匹配的文件名，然后是具有它们的文件的配置文件。这至少可以让您一次扫描一个目录，并试图找出为什么某些文件是问题。
Stack Overflow用户
发布于 2022-05-08 08:35:44
也许您可以强制将着色空间强制到RGB：
gm convert +profile "*" -colorspace RGB source destination页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/32012115
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