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December 1999
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1999.12.08 18:03 "Re: Testing: [was: Test Adobe ZIP TIFF needed]", by Martí María
Hi, > > You could do it without any patents, probably, but trade secrets might > be as big or bigger an obstacle. Adobe doesn't publish the details of > the CMYK separation methods used in Photoshop, for example. AFAIK none > of the big prepress players likes to talk about how they do it. > One nice method to do this accurately and without time penalty is using ICC profiles. I have put on public domain a package for doing that conversion. The test program does use Sam's library for low level I/O and then, the cmm engine Translates from/To RGB<->CMYK on a device-dependent way. More details on http://www.abaforum.es/martim/lcms.htm Regards, Martí Maria.