please help me

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danhsmile043
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please help me

Post by danhsmile043 » 2018-06-13T20:20:01-07:00

I'm aware that I can use "+dither -colors x" and get an image with x colors that is as close to the original image's colors as possible. But I can't, for example, use "-ordered-dither o8x8 -colors x" and achieve the same effects. It appears to me that "-ordered-dither" use 'posterized' color maps, and does not take account in the original image's palette, and while I can change the posterize level, I can't create an ordered dither that picks colors based on the current image contents.

If there's any way to achieve my goal please tell me, that would be extremely helpful.

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fmw42
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Re: please help me

Post by fmw42 » 2018-06-13T20:38:32-07:00

Please always provide your ImageMagick version and platform/OS when asking questions. Also please try to make your question relevant to the topic and not just "please help me".

Best I can suggest is http://www.imagemagick.org/Usage/quanti ... one_offset

snibgo
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Re: please help me

Post by snibgo » 2018-06-14T04:23:52-07:00

danhsmile043 wrote:If there's any way to achieve my goal please tell me, that would be extremely helpful.
Can you link to any examples of input images and dithered results?
snibgo's IM pages: im.snibgo.com

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