Converting RGB to CMYK

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jankrib
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Joined: 2011-11-04T02:57:29-07:00
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Converting RGB to CMYK

Post by jankrib »

I get strange artifacts when running "convert testRGB.jpg -quality 100 -colorspace CMYK testCMYK.jpg" the image is showing squares of slightly different colors on dark areas with the size of 16x16 pixels. Anyone know why and how to fix it?
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fmw42
Posts: 25562
Joined: 2007-07-02T17:14:51-07:00
Authentication code: 1152
Location: Sunnyvale, California, USA

Re: Converting RGB to CMYK

Post by fmw42 »

I cannot reproduce that on IM 6.7.3.4 Q16 beta on Mac OSX Tiger.

You might post a link to your input image. Also you did not say what version of IM or what platform. If old version of IM, then consider upgrading.
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