Version: (using KDE 3.5.10) Installed from: SuSE RPMs The Nikon Capture NX2 image processing program has a so called "delighting" feature, that helps in repairing images that suffer from very strong contrasts (dark parts too dark; bright parts too bright). This function can be applied to raw files and stretches the contrast such that the picture reveals details that were hidden in the original. To my knowledge the "delighting" function is Nikon proprietary. It would be very useful if somebody could reinvent an equivalent functionality for digikam.
Are you tried "Color/Auto Correction" tool from image editor ? http://farm4.static.flickr.com/3325/3221666877_829c166092_o.png More infos here : http://docs.kde.org/kde3/en/extragear-graphics/digikam/photographic-editing.html#id2538398 Gilles Caulier
Gilles, thanks for the quick reply. I played around with the various options in "Color/Auto Correction". But I wasn't able to achieve the same result that I had with Nikon's "Delighting" on one particular critical image. "equalize" delivered the best result, but in the bright parts of the image, it got far too bright, and the colors washed out. Unfortunately my test license of Nikon' Capture NX2 has expired, so I can't produce any more test cases. And also Capture NX2 runs only on windows, which is my most hated system. And I am not expert enough to really find out what causes the difference in the outcome of the two programs. Maybe you have access to , or can download a test version of Capture NX2 to find out, how "Delighting" works. To me "Delighting" seems to be the only feature missing in digikam. Nonetheless digikam is a great program; I have been using it for more than a year now, with perfect results. Thanks, Robert
To original poster: One tool I've used extensively when the auto contrast fails is the brightness/contrast/gamma plugin. Increasing gamma brings out shadow details. Decreasing brightness brings out highlight details Playing with contrast moves stuff in the midtones.
Hi Robert, In the 1.0.0 "pre" series, digikam offers the local contrast tool ("Enhance" -> "Local Contrast"). I could imagine, this is the functionality you are referring to. With best regards, Wolfi
On 12/06/2009 02:37 PM, Wolfram Quester wrote: > https://bugs.kde.org/show_bug.cgi?id=181736 > > > Wolfram Quester <wolfi@sigxcpu.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |wolfi@sigxcpu.org > > > > > --- Comment #4 from Wolfram Quester <wolfi sigxcpu org> 2009-12-06 14:36:58 --- > Hi Robert, > > In the 1.0.0 "pre" series, digikam offers the local contrast tool ("Enhance" -> > "Local Contrast"). I could imagine, this is the functionality you are referring > to. > > With best regards, > > Wolfi > > Hi Wolfi, yes I saw this new "Local contrast" feature in 1.0.0 and it looks like it is something similar to the Nikon delightening feature. But I was not able to test it so far, because I still have to understand how it works. Anyway thanks for the hint. Best regards, Robert
"delighting" feature is exactly what LC tool do. Gilles Caulier