On Saturday 05 August 2006 00:35, Olaf Gellert wrote: [I'ill try to answer you, according to what I understand about color management. I may do some mistakes, so please, wait for a guru answer ;o). My answer is an exercise to me. My apologizes if there are mistakes].
> I am working on my photos (usually with GIMP) on a > calibrated display (NEC2180 + Eye-One). You are using a calibrated display, but are you using Gimp-2.3, which support ICC profiles for your display? > - Save the image with GIMP (as usual) > - Use jpegicc or tifficc, using my monitor profile > as input profile and the printer profile (given > by my print service provider) as output profile. > - send the image to the print service If you work with Gimp-2.3, then the image is edited in sRGB colorspace, but correctly displayed in your monitor colorspace. So, source profile should be sRGB, and destination profile the printer one. If you are not using Gimp-2.3, then, yes, I think your are right, and you have to use the monitor profile as source profile. > Is this correct? Or would I just embed my own > monitor profile? Then the print service could > convert to his own profile and send the result > to the printer? Well, you have to ask your printer service, because they may not all work the same way. They may or not read embedded profiles. Usually, they assume your image is in sRGB colorspace. Anyway, if you embedded you monitor profile, you file must be in that colorspace. In case you are using Gimp-2.3 with display profile support, I think you have nothing to do if print service wait for sRGB images. If you are using Gimp-2.2, then use your monitor as source profile, but use sRGB as destination profile. > How would I prepare photos for prints on a certain > kind of paper? Or is this always left to the printer- > driver? A good print service should have a profile for each paper. Again, better to ask them. Print services often give their ICC profile; this is usefull to do soft proofing, ie check on your monitor what your print will look like. Gimp-2.3 can do that :o) But remember that the monitor can't show you all printer colors, and can display colors printer can't print. But the look will be very close. For example, you will see that there is not pure black; inkjet printers have better black than minilabs. Hope this helps. -- Frédéric http://www.gbiloba.org
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