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I am working on a project that requires me to separate out each color in a CYMK image and generate a halftone image that will be printed on a special halftone printer. The method used is analogues to silk screening in that the process is almost identical. Take a photo and break out each color channel. Then produce a screen for the half tone. Each color screen must have it's screen skewed by 15-45 (adjustable) degrees. Dot size and LPI must be calculated from user configurable values to achieve different effects. This process I am told is used in silk screening but I have been unable to locate any information that explains CYMK halftoning. I find plenty for reducing to a single color and generating new print style b/w halftone image. I would guess that I need to: split the file into it's color channels. generate a monochrome halftone image for that channel. Skew the resultant halftone image by the number of degrees * channel number. Does anyone know if this is the correct approach and any existing python code for this? Or of any good explanations for this process or algorithms?

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