Hi,
Try "cmsFLAGS_NOWHITEONWHITEFIXUP" On some optimizations, lcms "fixes" white to be pure white by patching the upper node. This is to prevent dispersed dots being spread all over the paper when printing. If that does not work, please send me a sample profile (use cmsSaveProfileToFile) and I'll give a try... Regards Marti Quoting Boudewijn Rempt <b...@valdyas.org>: > Hi, > > Ten years ago, we implemented a curve-based brightness/contrast filter in > Krita using this: > > https://www.mail-archive.com/lcms-user@lists.sourceforge.net/msg01509.html > > Now we've got a bug report about it: > > https://bugs.kde.org/show_bug.cgi?id=347533 > > If all the values of the curve are 0, we'd expect the output of the filter > to be completely black, because there's no lightness anymore, and if all > the values are 0xFFFF, we'd expect the output to be totally white. > > But in fact, in either case a ghost of the image is still visible. I'm not > sure what's up, but it's something that happens inside lcms2. I've tried > with different intents and conversion flags, but that doesn't seem to > matter. > > Boudewijn > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Lcms-user mailing list > Lcms-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lcms-user ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
