Hi Gerhard, Yep, you are right. Shame on me for responding without reading carefully the request :-)
You need some kind of math model or whatever that, given *any* Lab returns its corresponding RGB/CMYK. Or vice-versa. The sampler callback is just a way to embed such model into a profile. There are some samples on how to do that in the 'samples' folder. Take a look at mktiff8.c, mkgrayer.c, mkcmy.c and itufax.c I am willing to include some documentation in the 1.13 Regards, Marti. ----- Original Message ----- From: "gerhard.fuernkranz" <[EMAIL PROTECTED]> To: "Marti Maria" <[EMAIL PROTECTED]>; "Christian Bednarek" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]>; "Gerhard Fuernkranz" <[EMAIL PROTECTED]> Sent: Wednesday, May 12, 2004 5:03 PM Subject: Re: [Lcms-user] How does this all work? or: help, I'm too stupid! Marti Maria schrieb: >Normally, there is no need to go so deep. _cmsSampler >is one of these complex things that you probably do not need. > Hello, maybe I did misunderstand Chris, but when he said >> I'm smart enough to understand, that this "sample" >> values together with the known input-values are the >> core of a profile. But how on earth does this relate >> to _cmsSampler, the LUTs and so on? I was believing, that his desire is rather not to apply a profile, but to understand how to *create* a profile from measurement data? > Well, littlecms in core is just a CMM. Right, that's the point. Creating a profile from measurements is a (high sophisticated) task for a profiler and not for a CMM, and thus it is not supported by the LCMS library. In the library there exist only the low level functions to create/sample the LUT, to store the LUT into a profile and to write the profile to a file. Gerhard ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
