In message <canqv4tvghyg3bofapbv9mw57+0_5h8ac68wdnn5nat2fbru...@mail.gmail.com> on Mon, 4 Feb 2013 22:49:50 +0100, Pascal de Bruijn <[email protected]> said:
pmjdebruijn> On Mon, Feb 4, 2013 at 10:45 PM, Artur de Sousa Rocha pmjdebruijn> <[email protected]> wrote: pmjdebruijn> > 2013/2/4 Richard Levitte <[email protected]>: pmjdebruijn> >> Ok, in that case I'd like an explanation to what's happening to me. pmjdebruijn> >> This all started with me color characterising my monitor (laptop LCD) pmjdebruijn> >> and creating a profile for it (using dispcalGUI), then loading it pmjdebruijn> >> (using 'dispwin -L'). Display colors became much better (grey is pmjdebruijn> >> actually grey, not something with a blue tint). pmjdebruijn> >> pmjdebruijn> >> Then I started doing some work on some images I had taken just pmjdebruijn> >> recently, and what I got was absolutely h-o-r-r-i-b-l-e. Basically, pmjdebruijn> >> the three channels were kind of shifted in the histogram, and what was pmjdebruijn> >> supposed to be a black background was now redish brown or some such. pmjdebruijn> >> (I wonder if I could possibly produce a test, say by putting together pmjdebruijn> >> a white .png, import it and see how it ends up). pmjdebruijn> >> Changing my display profile from "system display" to "sRGB" gave me a pmjdebruijn> >> better look. pmjdebruijn> > pmjdebruijn> > I'm afraid the "laptop LCD" part might be a clue. Few laptop displays pmjdebruijn> > can deliver the gamut needed. pmjdebruijn> pmjdebruijn> I agree most laptop displays are unsuitable for serious photo processing. But... pmjdebruijn> pmjdebruijn> > The calibration software tries to pmjdebruijn> > preserve the brightness ratios between different levels. If it cannot pmjdebruijn> > by a large margin it will fail in all kinds of ways. That's why I pmjdebruijn> > moved to an external display for photo processing. pmjdebruijn> pmjdebruijn> It should still be possible to get a half-decent profile. Color pmjdebruijn> managing a small gamut display just means you lose detail in very pmjdebruijn> saturated parts of the image. It should not result in significant pmjdebruijn> color shifts. pmjdebruijn> pmjdebruijn> So this might be fixable to an extent. My simple fix was to change the display profile to sRGB... Cheers, Richard -- Richard Levitte [email protected] http://richard.levitte.org/ "Life is a tremendous celebration - and I'm invited!" -- from a friend's blog, translated from Swedish ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
