I forgot the archive. :-( Am 14.11.18 um 11:39 schrieb Jan U. Hasecke: > Hi all, > > attached you find my colormanagement tests and I need your help to > understand and debug the situation. > > I am testing together with a friend of mine, a professional > colormanager, who does not know ConTeXt. > > > There are several files in the archive: > > The differences in the files are the color definition and the color > profile used. > > - rgb-xxx.tex – colors are defined with RGB values only. > > - rgb-cmyk-xxx.tex – colors are defined with RGB and CMYK values. > > The cmyk colors are derived from the rgb values using gimp and the > color profiles sRGB/ISOCoated > > - cmyk-xxx.tex – colors are defined with CMYK values only. > > The xxx stand for two color profiles: iso-coated and swop. > > What I see is this: > > Colors in pdfs are the same no matter what color profile I choose. > > With rgb values and rgb/cmyk values I get the same colors in pdf (the > wrong ones). > > With cmyk values only I get other colors in pdf. Next week my friend > will test if these are the right ones. > > I have many questions: > > 1. Is colormanagement working in ConTeXt at all? > 2. Is my code correct? > 3. Why do pdfs with different color profiles show the same colors? > 4. Why does ConTeXt not take the cmyk colors from \definecolor when > there are rgb values as well? > 5. Where can I define a coresponding rgb profile? In Scribus you have to > define two profiles (eg. sRGB and ISOCoated) to make colormanagement work. > > TIA > juh > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ >
<<attachment: farbmanagement.zip>>
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
