Hi, I'm interested in speed of calculation, so rebuilding a profile is not an option. Also sometimes I do not have the original data so would have to create it with a CMYK to Lab conversion.
I've seen it done though where calculation of a Lab value using specific channels is almost instantaneous. i.e. without any iteration of values or re-profiling. Lee On 5 Jul 2013, at 22:22, James Cloos wrote: >>>>>> "LB" == Lee Badham >>>>>> writes: > > LB> If I have a CMYK profile, is it possible to use it to just convert > LB> to CMY, or CMK and leave out a channel? > > Given Marti's reply, if you have the characterization data, you could > try editing out any patches which involve the black ink/toner and create > a new CMY profile from that edited data. > > It might not work quite as well as starting from scratch to create a CMY > profile (the CMYK patches might not be a proper superset of the CMY patches) > but might be close enough to have value. > > -JimC > -- > James Cloos <cl...@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
