Page 1 of 1

N-Channel ICC profile conversions

Posted: 2020-02-20T03:39:31-07:00
by NeilLynne
Hi I am trying to convert RGB images into n-channel Hexachrome space. I have downloaded profiles from Pantone site: ... 2&pg=20338&

The following command give an error:

Code: Select all

convert \
rose: \
-profile ./profiles/sRGB_Profile.icc \
-profile ./profiles/CTPUctdMed.icc \

convert: color profile operates on another colorspace `icc' @ error/profile.c/ProfileImage/1054.
Version: ImageMagick 7.0.9-21 Q16 x86_64 2020-02-13
Mac OSX 10.12.6
Installed through Homebrew 2.2.5

Other conversions with RGB or CMYK profile are working without error. It looks like the support for n-channel profiles doesn't exist at the moment, although I cannot find anything to suggest this limit. Any help would be great.

Re: N-Channel ICC profile conversions

Posted: 2020-02-20T09:14:38-07:00
by snibgo
The ICC Profile Inspector says CTPCtdMed.icc will convert from 3 channels to 6 channels, or from 6 to 3. Perhaps this is for a 6-channel printer.

As far as I know, ImageMagick cannot yet cope with 6-channel images, or create them. A developer may comment.