Computer graphics: programatically create duotone (or separations)

Posted by TarGz on Stack Overflow See other posts from Stack Overflow or by TarGz
Published on 2010-03-14T14:01:40Z Indexed on 2010/03/14 14:05 UTC
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graphics

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printing

There are special kind of images called "duotone" which have just two channels. It is mostly used when you want to achive higher quality reproduction - have a printing press with two colors (black , gray).

My question is, I have normal gray-scale image, how to convert it to duotone?

I know I can tweak the curves in Photoshop - this is not what I'm asking, rather than how to do it programmatically? Perhaps there is a library which can do just that? What about "dot gain compensation"? "Total ink coverage"?

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