[Digikam-users] color cast in extreme highlights in DNG files

[Rei Shinozuka]

In DNG images with large areas of overexposure, entering the Image 
Editor renders a color cast, often magenta or yellow.  It almost 
resembles a stain on the image.  Color casts do not appear when looking 
at the DNG in album mode, nor in the simultaneously-created in-camera 
JPGs, but only in the digikam Image Editor.  If the image is saved from 
Image Editor as a jpg, the color cast is present in the output file.  
The color cast only seems to happen in areas which appear to be 100% 
white, absolutely burnt out highlights, though it does not precisely 
coincide by areas marked by the overexposure indicator.

I can provide sample images demonstrating this phenomenon.

digiKam Version 1.2.0  Using KDE Development Platform 4.4.2 (KDE 4.4.2)
2.6.32-22-generic #33-Ubuntu SMP

thank you,

-rei