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Computer question - Which color profile to use?
Old 11-26-2006, 09:02 PM   #1 (permalink)
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I have two computers with Radeon X300 PCI-Ex cards. One has KDS Rad-5 15" LCD (which will be replaced soon) and the other has Samsung 730B 17" LCD (on DVI).

When I opened digital images in Photoshop the KDS monitor always displayed wrong (means brown insted of black, etc.) colors and the Samsung seemed OK. Both monitors were using respective original color profiles from manufacturers. However, when I changed the color profile from original to "sRGB Color space profile", the KDS monitor started to display correct colors. Does this mean manufacturer supplied profile is not good?

With Samsung, I am using SM730B profile from Samsung. Should I change that too? (In fact I changed it to Adobe RGB 1998 prifile and there were no visible differences).

I am using XP Pro in both computers.
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Re: Computer question - Which color profile to use?
Old 11-27-2006, 12:25 AM   #2 (permalink)
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Hey Dan,
this sounds like actaully a different problem. It dosn't sound like it has to do with your graphics card, but monitor calibration. There are two ways to go about correcting this. The inexpensive way is to use the Adobe Gamma in your control panels, and follow the direction. The second is a bit more expensive, but more accurate, which is to go out and purchase something along the lines of a monitor calibrator like a Spyder which has suction cups that attach to your monitor and then you attach it to your computer via usb. It's easy to use, and of course there are more brands out there, I just recommended the one I have experience with. But as far as choosing a profile itself, that all depends on your output. Printer, things like that, and that either comes with the software that comes tih the printer or by trial and error. Personally, what I have done is calibrate my monitor using Adobe Gamma (I'm running Win XP) and then take it to a lab to have it printed, which has given me excellent results, plus it's on much better paper, and costs less. Hope this helps.

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Re: Computer question - Which color profile to use?
Old 11-27-2006, 04:09 PM   #3 (permalink)
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First place to go is into the controls for the monitor itself. You can completely mess up the colour response for your monitor without altering the software at all If your settings on the monitor are inappropriate, it doesn't matter what profile you use. If your monitor has an sRGB mode, you may be able to get away without a profile (assuming the sRGB setting is accurate).

If you want to get serious about colour fidelity, about the best thing you can do is buy a calibrator - I don't regret dropping the money on a Gretag-MacBeth Eye-One. Unless you calibrate, you have no absolute reference for your colour.

Good luck!
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