Regarding color conversion (RGB->CMYK)

[Robert Kern]

Cy Edmunds wrote:

> There is no simple way to convert RGB to CMYK for the simple reason that 
> CMYK is a device dependent color space. (Actually, unless it is calibrated 
> somehow RGB is a device dependent color space also.) A good way to do the 
> conversion is to get the ICC profile for the device that made the RGB and 
> another ICC profile for the device which will print the CMYK and convert one 
> to the other using a color management module -- aka a CMM. I don't know if 
> ImageMagick can do this for you or not but it would be very hard to get the 
> colors right any other way.

LittleCMS has Python bindings.

http://www.littlecms.com/

-- 
Robert Kern
rkern at ucsd.edu

"In the fields of hell where the grass grows high
  Are the graves of dreams allowed to die."
   -- Richard Harter