Am 06.04.08, 17:16 +0200 schrieb Olivier BERTEN: > Now some thoughts about color swatches in general and about the CREATE draft: > > > Registration color
What does Registration mean? > IMHO, this shouldn't come in a color swatch file. It's a "system" color, just > the opposite of 'None'. It depends of the colors used in the document. If > you're using only cyan in your document, registration will be 100% cyan. If > your document contains only magenta and yellow, registration will be red. And Seems Cmyk is ignored this way. > if you have spot colors, registration won't be C=100% M=100% Y=100% K=100%. In > other words, registration can't be defined out of the document's context. > Registration should just be added in the software's color list for any press > work. ?? > Color swatch draft > <http://create.freedesktop.org/wiki/index.php/Swatches_-_colour_file_format/Draft> > > The name and space attributes shouldn't be mandatory. A color doesn't need a > name to come into a palette and many palettes are just a arbitrary > "geometrical" division of the possibilities of color model. When you have Just numerical kind of colours are not precise. > #003399 in a palette, it's not because it looks like anything in real life, > it's just because its neighbors are #003366 and #0033CC. It just shows > different possibilities of RGB, whether you're using sRGB or AdobeRGB doesn't It would be nice in having a reference to colour spaces. > matter. The same applies to "Black 20%" (or C=10% M=20% Y=30% K%). There are a > lot of such palettes where neither the name or the color space have any > importance. By the way, Lab and XYZ don't need any color space since these are > device-independant models. Lab and XYZ need a colorimetric reference, in ICC context to white, in a more general context viewing conditions and physical intensities. kind regards Kai-Uwe Behrmann -- developing for colour management www.behrmann.name + www.oyranos.org _______________________________________________ CREATE mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/create
