Hallo Marti, a really great working code. I tried the icc2ps.exe for generating CSA's ans CRD's on 4 different Printers, not only the white Problem is fixed, also the Gradation of single colors (0% Cyan up to 100% Cyan) is really smooth and much better than before.
When it is possible to to download a release patch to 1.11? Regards Thomas -------- Original Message -------- Subject: Re: [Lcms-user] Problem with white using any lcms-generated CMYK-CSA (10-Nov-2003 18:00) From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] > > Hi, > > Would please give a try to the precompiled icc2ps.exe located here? > > http://www.littlecms.com/icc2ps.exe > > > I've done some fixing in the CSA generation logic, and found some bugs. > Additionally, this also has black point compensation feature for CRD. > If this works fine to you, I will commit the chages to main sources, > and do a new release or a patch to 1.11. > > Thanks. > > Regards, > Marti Maria. > > > ----- Original Message ----- > From: "Reinhard Roesel" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, November 10, 2003 5:33 PM > Subject: [Lcms-user] Problem with white using any lcms-generated CMYK-CSA > > > Hallo, > > thanx to the developers for the good work on lcms ! > > I'm playing with it for generation of CSAs and CRDs for a > PS-RIP for a laser color copier/printer, which works fine, > except from the reproduction of white when simulating > another CMYK colorspace via > << /UseCIEColor true >> setpagedevice > and remapping DeviceCMYK via a generated CSA. > > All colors look fine, but white does not remain white > (regardless of rendering intent and CRD and originating > Profile for CSA), it is always a bit dirty. > > Printing RGB images using an RGB-Profile -> CSA works fine, > white remains white. > The same CMYK-workflow in Photoshop 7 works too, only the > in-rip conversion with the CSA fails. > > I don't have the deep background in color conversion mathematics > and its implementation in PostSctipt (not yet, but I'm still > hopeful...) > > So my question: Can I modify the originating profile > or the CSA (or the generating code) to get a clear white in > the simulation ? Or is it a bug in lcms ? > > It looks like the problem mentioned in this posting: > http://sourceforge.net/mailarchive/forum.php?thread_id=2922755&forum_id= > 1912 > > If it is and will remain a bug - is there another (free or > non-free) library for creating CSAs on Windows or Linux ? > > Thank you a lot ! > > > Regards > > Reinhard > > -- > Reinhard Roesel > ---------------------------------------------------------------- > Sofha GmbH D-13355 Berlin Gustav-Meyer-Allee 25 > Tel +49 - 30 - 46 30 71 35 mailto: [EMAIL PROTECTED] > Fax +49 - 30 - 46 30 72 35 www: http://www.sofha.com > > > > > ------------------------------------------------------- > This SF.Net email sponsored by: ApacheCon 2003, > 16-19 November in Las Vegas. Learn firsthand the latest > developments in Apache, PHP, Perl, XML, Java, MySQL, > WebDAV, and more! http://www.apachecon.com/ > _______________________________________________ > Lcms-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/lcms-user > > > > > ------------------------------------------------------- > This SF.Net email sponsored by: ApacheCon 2003, > 16-19 November in Las Vegas. Learn firsthand the latest > developments in Apache, PHP, Perl, XML, Java, MySQL, > WebDAV, and more! http://www.apachecon.com/ > _______________________________________________ > Lcms-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/lcms-user ------------------------------------------------------- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
