Hi, I'm new to this list... first of all, thanks for this great CMS engine, I'm using it in my application (Pixel image editor).
Right now I'm playing with Pantone colors, they're defined as double-floats (64-bit) Lab and I would like to convert them to 8-bit Lab (type_Lab_8)... simple rounding and clipping doesn't work well, maybe I need to multiply those values with some factor but I can't find the right one... any hints please? I see that L=0..255,a/b=-128..127 :) Another thing is that I have HDR images with single float (32-bit) per channel, is there any way to define such type for lcms transform or should I convert it to 16-bit RGB before I want to convert to let's say Lab? I'm wondering if I'm not loosing any precision... as HDR values are in range 0.0 ... 1.0, conversion to 16-bit RGB is then just multiply by 65535, but in HDR there are higher values than 1.0 possible, for example, paper=1.0, sun=549312.0 :) Thanks for any answers! regards, -- Pavel Kanzelsberger http://www.kanzelsberger.com E-Mail: [EMAIL PROTECTED], ICQ: 209 906 33 Jabber: [EMAIL PROTECTED] ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
