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------- Additional comments from [email protected] Wed Jun 23 14:04:39 +0000 2010 ------- The problem would still be that the OD# file saves the colour as RGB values. So this then needs to be exported into a file type which has CMYK abilities (something like PDF, JPG or TIFF). In which case you can use a PDF Printer driver (seeing as OOo's PDF export doesn't do CMYK) and apply one of the CMYK ICC profiles to this driver. You could even obtain the ICC profile specific to the printer you intend sending it to (hopefully the print-shop or whatever has such :) ). The ICC profile can be seen as the formula you suggest with a varying constant. Depending on the darkness of the colour the constant might need to increase / decrease. This is accomplished in the profile by having certain sample colours with near exact matching coordinated values in the target space. The colours in between then gets extrapolated, so the more samples the more accurate. http://www.color.org/ As I've stated there is a open source ICC engine available (http://www.littlecms.com/) which has a reasonably simple way of sending an RGB value and obtaining another colour space value as result. In their tutorial they even have a sample of how to convert a BMP between RGB->CMYK and CMYK->RGB. --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
