On 19/03/14 08:24, Martin Marmsoler wrote: > I want to edit some photos in darktable but when I have imported the pictures > in darktable, I saw, that the colors are > totaly diffrent to the colors of the normal pitcureviewer from ubuntu 13.10. > Also the photo is fuzzier then in the > pictureviewer. But why there is so a great diffrence between the two > pictures? Here the photos: > https://www.dropbox.com/s/m60n54544jc0m9q/Picture1.png
The image on the right is the embedded JPG preview. The image on the left is the RAW file, minimally processed by darktable (white balance, demosaic, minimal sharpening and base curve). In order to produce the right image, the camera has applied any number of additional filters, the minimum of which will be sharpening, noise reduction, contrast enhancement, and it looks like it has picked a slightly different white balance to what darktable has chosen as well. Also, the RAW image in darktable will respect the system colour management, whereas the image viewer may not (depends on the viewer). Because the RAW development process the camera uses is proprietary, we can't know what it has done. This makes "matching" a RAW to the JPG preview difficult (and kind of pointless anyway; if you want to do that, just use the Canon software or use the "RAW image processing" menu option in the camera to convert the RAW to JPG). Or you could try doing something like: * increase global contrast slightly using the "contrast brightness saturation" module (basic group) or maybe increase the black point in the "exposure" module (basic group) * increase local contrast using the "local contrast" module (tone group) * have a play with the "sharpen" module (correction group) * have a play with the upper spline in the luma tab of the "equalizer" (correction group) A slight hump in the right-hand 1/3 of the spline is probably a good place to start. * have a look at the "white balance" module (basic group), try some of the presets (looks like tungsten might be appropriate) but if they don't work then you can try the sliders. But like I said, your aim should be to make an image that's /better/ than the embedded JPG, not the same. Otherwise you might as well shoot JPG (or RAW+JPG). Regards, Rob ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
