Am 19.05.04, 02:16 +0200 schrieb Yvan Richard: ... > I know that we can do ICC Color Profile for more than > eight channels, but I think that Manufacturer 'HP, Canon > Epson' don't do it. I take a look on the stylus photo R300 > printer driver and find an ICC color profile, but it's an input > color profile RGB to PCS. I find some rsrc files, inside which > we can find informations about Printer setting, 'Halftone, > weaving, paper...' and an information about Color conversion > 'Tag AB..', but I don't know if it's CMYK or CcMmYK.
Expect You are using an windows machine for printing. There ist an system called GDI, which passes all data from Your application to the printer driver and finally to the printer. The GDI interface allows only RGB data. So any further CMYK handling is pointless. You need an RIP (Raster Image Processor) to do so. An RIP mostly allows You to use more data types and color channel types. You often intput there postscript, as an standard format, tiff or newly pdf. One RIP which is often used on linux, because of its free availablility, is gimp-print. There You have CMYK, CMYKRB, RGB ,RAW (to match each output channel of Your printer head - CcMmYKk+++) <http://gimp-print.sf.net>. You can do many exciting things with an RIP. But at least Your printing application should support its input modes or convert to. Then You can use cmyk and calibrate Your printer with the help of an colorspectrophotometer and an suitable profiling software or let someone do the calibration. > I there someone who know how is made color matching for more > than 4 inks inside the driver. Is it really 8 channels interpolation or Some of the newer profiling software is capable of handling hore than four input channels, but better ask explicitely for it. The lcms library should handle all supplied channels. Depending on Your printer driver (RIP) You will be able to handle these color datas and finally print them. Sorry, the matter seems complicated. Kai-Uwe ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ Lcms-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/lcms-user
