>Ive tried using little CMS to Load a standard Lab profile with a D50 white >point, and then Update the "wtpt" tag to D65 Numbers, then Save the Profile >... but the profile is not valid ... I think im going something wrong.
Hi, well these profiles are implemented using a CLUT of 0 points. This works on lcms but not on ICM2. Anyway, a couple of notes... D65 will only apply to absolute colorimetric intent. Results would be same for all other intents. You can take the lcmslabi.icm profile from here: http://www.littlecms.com/profiles.zip and edit the media white tag. Yep, would need a profile editor, and this is not in current lcms distribution... Additionally, you can build your own identity profile. In the 'samples' folder there are some code to take as basis. Regards, Marti Maria The little cms project http://www.littlecms.com [EMAIL PROTECTED] ----- Original Message ----- From: "Glenn Wilton" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, April 11, 2004 7:34 AM Subject: [Lcms-user] D65 Lab Profile Ive got colour databases in D50 and D65 LAB Format. Im using Little CMS to convert these to other Colur Spaces, I can easily setup an D50 or D65 LAB>RGB Transform in LittleCMS. However I also need to use MS ICM2 to do some transforms (As ICM2 generates different Numbers) What I need is an Actual Lab D65 ICC Profile on disc that I can then get Windows ICM2 to load. Ive tried using little CMS to Load a standard Lab profile with a D50 white point, and then Update the "wtpt" tag to D65 Numbers, then Save the Profile ... but the profile is not valid ... I think im going something wrong. Any idea on how to create a LAB profile with a D65 White and save it ? .... Or could someone just Email me one? PS: I noticed if I just get LittleCMS to generate an interal LAB profile and then save it ICM2 will load it bit wont create a transform. Glenn Wilton > [EMAIL PROTECTED] < ----- Original Message ----- From: "Marti Maria" <[EMAIL PROTECTED]> To: "Nicola Marinelli" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturday, April 10, 2004 10:37 PM Subject: Re: [Lcms-user] Very simple question > > Hi, > > TYPE_XYZ_16 is in 1.15 fixed point. Probably it would be > easier to you to use TYPE_XYZ_Dbl, which returns 3 doubles. > Anyway XYZ is always positive. > > Regards, > Marti Maria > The little cms project > http://www.littlecms.com > [EMAIL PROTECTED] > > ----- Original Message ----- > From: "Nicola Marinelli" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, April 09, 2004 11:10 AM > Subject: [Lcms-user] Very simple question > > > TYPE_XYZ_16: signed or unsigned values ? I suppesed "unsigned", but I'm > always getting values lower that 32768 ... > > Thanks, Nicola. > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux Tutorials > Free Linux tutorial presented by Daniel Robbins, President and CEO of > GenToo technologies. Learn everything from fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > Lcms-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/lcms-user > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux Tutorials > Free Linux tutorial presented by Daniel Robbins, President and CEO of > GenToo technologies. Learn everything from fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > Lcms-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/lcms-user > > ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
