Hi, I agree having to impose such limitations is lame, but there are Legal implications that is just better to avoid. Really. Anyway, I think You can effectively ignore the chromatic adaptation tag since the Information it contains is only used by a specialized kind of absolute colorimetric intent. Very few CMM honor this tag, which main purpose is to recover the chromaticity of original illuminant. Also this is v4 stuff: that means any v2 CMM should ignore this tag. This is certainly the case of ICM.
I haven't tried, but chances are that ICM and Get/SetColorProfileElement will not handle the tag. Regards Marti Maria The littleCMS project www.littlecms.com On 23/12/2006 17:05:53, Sergey Tolstov ([EMAIL PROTECTED]) wrote: > Hi Marti, > > Thank you for your answer. > I thought to create a temporary copy of matrix RGB profile parameters > which has only gamma-table modified. > I would copy all profile properties but gamma table. The later is made > to be linear function. > This profile is to be used as a rendering color space. Input colors then > to be converted to the rendering color space before rendering. > After rendering is complete, conversion to the original profile happens. > The icSigChromaticAdaptationTag is one of the parameters which are > necessary to be copied. > > However, now I suppose it could indeed bring copyright issues indeed. > > By the way. Take a look into the ICM on MSDN. It provides the following > functions: > GetColorProfileElementTag > GetColorProfileElement > SetColorProfileElement > GetColorProfileHeader > SetColorProfileHeader > I never used them, but it seems to me they do exactly what you are > trying the littleCMS to prevent to do:) > > Thanks, > Sergey > > > -----Original Message----- > > From: Marti Maria [mailto:[EMAIL PROTECTED] > > Sent: Saturday, December 23, 2006 6:53 AM > > To: Sergey Tolstov > > Subject: Re: [Lcms-user] cmsReadChromaticAdaptationMatrix request > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
