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-intent and -black-point-compensation options does not work
Posted: 2013-06-18T09:59:34-07:00
by ivants
Both -intent Perceptual and -intent Relative produces identical results. Same with -black-point-compensation.
This is IM bug or I just not understood something?
Thanks
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-18T11:01:39-07:00
by snibgo
What profile are you using? Does it have perceptual and relative intents?
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-18T11:44:00-07:00
by ivants
Yes, I try to use Photoshop Uncoated Fogra CMYK profile
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-18T12:17:45-07:00
by snibgo
What is your command? What version of IM are you using (and what platform).
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-18T13:06:44-07:00
by ivants
Windows 7
ImageMagick-6.8.5-Q16
Intent switching works, there was my mistake, but BPC still not working:
convert image.tif -intent Relative -profile Uncoated.icc -black-point-compensation OUT_NEW2_rel_bpc.tif
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-18T13:16:01-07:00
by snibgo
IM performs the operations and settings in the order you provide them. "-black-point-compensation" is a setting that changes the operation of any following "-profile", so needs to be placed before it:
Code: Select all
convert image.tif -intent Relative -black-point-compensation -profile Uncoated.icc OUT_NEW2_rel_bpc.tif
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-19T01:20:49-07:00
by ivants
Thank you for pointing me on that. Everything works fine
Sorry for false bug report
Re: -intent and -black-point-compensation options does not w
Posted: 2013-06-25T16:26:04-07:00
by anthony
I have now added a note about this into
IM Examples, File Formats, Color Profile Modification
http://www.imagemagick.org/Usage/format ... ofile_mods
Also updating the 'reference guide'.. change should appear in a couple of hours.