Am 29.07.07, 12:56 +0200 schrieb Lars Tore Gustavsen: > My goal in the long run is to make a high quality profile for printing > 16- bit files from cinepaint to my epson r2400 with the gutenprint > driver. I will also use the very nice photoprint tool. > > CREATING TARGET > First cinepaint is capable of printing 16-bit files. The target that > argyll creates is as far as I can see 8 bit. Is it possible to create > 16 bit target in argyll? You can convert to 16-bit in CinePaint without any loss. > READING TARGET > This question is more off topic from argyll, but since it is related, > I put it here. > Should I disable all colormanagment in cinepaint before I read the > target? I think I have read something like that for more windows based > workflows. Yes, use the Direct Printing option when printing a target for calibration and profiling. > When I load the target (the ps file) in cinepaint I get a popup window > named "PDF load settings". > When I load a CMYK target, is it correct with this settings in this window? > Intermediate format: PSD cmyk/rgb (this is the only format where I can > select cmyk) > Select colorspace: Cmyk > Resolution: 300 This causes Ghostscript to not touch the device Cmyk colours. You end with the correct Cmyk values in CinePaint. > It looks like cinepaint use a ISOcoated.icc profile somewhere in this > import process. ISOcoated.icc is the default for a untagged Cmyk image, possibly set in Oyranos. It is used for proofing and on behalf of a better mechanism for printer profile selection. > I can also convert the postscript file by hand to a tiff file like this > gs -sDEVICE=psdcmyk -dNOPAUSE -r300 -sOutputFile=PrinterB.psd > PrinterB.ps -c quit > > but I guess this is almost the same as cinepaint does. Except for the -sProcessColorModel=DeviceCMYK option. When running CinePaint from the command line you should see the command used to call Ghostscript. Hopes this is a chance for some transparency. > PRINTING TARGET > I also need some guidance for the printing step itself. There is two > methods in cinepaint. Direct printing or printing with a separation > profile. I assume that the latter is to be used when I have made my > printer profile. So I guess it's correct to use the "direct printing > cmyk" option. This option require 16 bit data so I need to convert > the image before I print. > Before I started cinepaint I have edited my ~/cinepaint/printcap and > created a new entry for the printer and paper type I plan to use. It > also contain the "Parameter ColorCorrection String True > "Uncorrected" line. To be sure that gutenprint don't fix the color > itself. I will use this entry when I print with my created printer > profile later. > > Anything else I have forgotten? Keep all colour related printing options and media later unchanged. > Lars Tore Gustavsen kind regards Kai-Uwe Behrmann -- developing for colour management www.behrmann.name + www.oyranos.org + www.cinepaint.org