Description
Profiles can optionally include a tag saying which intent they recommend. Using (this profile)[http://www.ifra.com/WebSite/ifra.nsf/html/CONT_ISO_DOWNLOADS] I see:
$ exiftool ~/pics/ISOnewspaper26v4.icc
ExifTool Version Number : 12.56
File Name : ISOnewspaper26v4.icc
Directory : /home/john/pics
File Size : 719 kB
File Modification Date/Time : 2004:06:30 14:06:30+01:00
File Access Date/Time : 2023:05:01 13:24:35+01:00
File Inode Change Date/Time : 2023:05:01 13:21:56+01:00
File Permissions : -rw-rw-r--
File Type : ICC
File Type Extension : icc
MIME Type : application/vnd.iccprofile
Profile CMM Type : Apple Computer Inc.
Profile Version : 2.4.0
Profile Class : Output Device Profile
Color Space Data : CMYK
Profile Connection Space : Lab
Profile Date Time : 2004:06:28 20:53:23
Profile File Signature : acsp
Primary Platform : Apple Computer Inc.
CMM Flags : Not Embedded, Independent
Device Manufacturer : Unknown ( )
Device Model :
Device Attributes : Reflective, Glossy, Positive, Color
Rendering Intent : Perceptual
Connection Space Illuminant : 0.9642 1 0.82491
Profile Creator : Unknown (LOGO)
Profile ID : 0
Profile Copyright : Copyright by LOGO GmbH, Steinfurt
Chromatic Adaptation : 1 0 0 0 1 0 0 0 1
Media White Point : 0.6442 0.664 0.50038
Gray Tone Reproduction Curve : (Binary data 1034 bytes, use -b option to extract)
A To B0 : (Binary data 95052 bytes, use -b option to extract)
A To B1 : (Binary data 95052 bytes, use -b option to extract)
A To B2 : (Binary data 95052 bytes, use -b option to extract)
B To A0 : (Binary data 132248 bytes, use -b option to extract)
B To A1 : (Binary data 132248 bytes, use -b option to extract)
B To A2 : (Binary data 132248 bytes, use -b option to extract)
Gamut : (Binary data 35414 bytes, use -b option to extract)
Profile Description : ISOnewspaper26v4
(Rendering Intent in the above listing)
libvips does not support this in an easy way at the moment. The LCMS API is:
cmsUInt32Number intent = cmsGetHeaderRenderingIntent( profile );We could add a new VipsIntent, perhaps VIPS_INTENT_DEFAULT, meaning "use the intent recommended by the profile, if any, otherwise use relative".
Reporting discussion: #3474