On 05/26/2010 10:51 PM, Bartosz SKOWRON wrote: > hi guys, > > i've just bought a new LCD (EIZO S2433W) with pretty wide gamut. I use > gnome-color-manager to set the profile for the LCD. In Geeqie's > preferences I have turn on 'Use system screen profile if available' > and in the menu View -> Color Management -> use color profiles and > use profile from image. > > So there are 2 problems. First one, when there is no ICC profile > embedded in an image (e.g. PNG files I believe). The color of images PNG files support embedded color profiles, though a smaller proportion of them of them have one, compared to JPEGs > is compltely bad. In shortcut it looks like the saturation was > completely down. Please see the screenshot: > http://img265.imageshack.us/img265/6493/zrzutekranu5g.png > When I turn off 'use color profiles' it looks OK. > Funny thing is with taking screenshots of Geeqie with this problem. > Another screenshot of the screenshot is with lower and lower > saturation. "Lack of saturation" sounds like you're viewing an AdobeRGB image without using the AdobeRGB profile. If so, there's not really anything geeqie can do. In the View->Color Management menu, you can force geeqie to interpret the photo as if it were AdobeRGB, but the real answer is "images without embedded profiles should be sRGB, or you should expect pain and know how to deal with it."
The other big possibility is that this is some interaction problem between X11 and OS X. Not having used the two together for anything color-centric, I have no idea what the story is there. > The second problem is with files with embedded profiles. They look OK, > however if I compare it to Firefox or VirtualBox, there are some > slightly differences between Geeqie and others. I checked it with > Color Sampler as well. Screenshot below: Firefox's color rendering is not accurate, period. For one thing, IME, it consistently renders photos-with-embedded-profiles with a noticeably high blackpoint. You should compare with an app whose only purpose is to display images, like GIMP. It would probably also be useful to compare both geeqie and firefox to an OS X-native app like Photoshop that is guaranteed to treat color profiles correctly and display images accurately. I don't know how much I'd trust Preview or Safari. --xsdg ------------------------------------------------------------------------------ _______________________________________________ Geeqie-devel mailing list Geeqie-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geeqie-devel
