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CMYK TIF to CMYK EPS

Posted: 2009-09-10T03:23:36-07:00
by axelrose
Hello all,

can anybody give advice how to produce CMYK EPS?

I tried this:

Code: Select all

> convert -version
Version: ImageMagick 6.5.4-7 2009-08-03 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2009 ImageMagick Studio LLC

> convert rose: -colorspace cmyk tif:/tmp/rose.tif
> exiftool /tmp/rose.tif | grep Photometric
Photometric Interpretation      : CMYK
> convert tif:/tmp/rose.tif -colorspace cmyk /tmp/rose.eps
When I view the resulting "rose.eps" with Apple's Preview.app, which converts the EPS
to PDF, it is no longer a red one but a blue one.

Thanks for your time,
Axel.

Re: CMYK TIF to CMYK EPS

Posted: 2009-09-21T04:37:26-07:00
by axelrose
May I kindly ask if the color change is reproducible and whether this is a recognized bug?

Re: CMYK TIF to CMYK EPS

Posted: 2009-09-21T10:35:54-07:00
by fmw42
perhaps you need to include proper sRGB and CMYK profiles

see http://www.imagemagick.org/Usage/formats/#profiles

Re: CMYK TIF to CMYK EPS

Posted: 2009-09-22T07:14:39-07:00
by axelrose
Using profiles works but only if the source file has a profile attached.

ok:
convert rose: -profile ISOcoated.icc rose.tif
convert rose.tif -profile ISOcoated.icc rose.eps

not ok:
convert rose: -colorspace cmyk rose.tif
convert rose.tif -profile ISOcoated.icc rose.eps

Nethertheless I think that EPS creation shouldn't convert red to blue when creating
an EPS with "-colorspace cmyk".