ufraw
The Unidentified Flying Raw
Application to read and manipulate raw images from digital cameras. It takes care of the color management, handles the Nikon curve formats and has an editor for the tone curves. For batch processing of images you can use the command-line.
There is no official package available for openSUSE Leap 15.5Distributions
openSUSE Tumbleweed
openSUSE Leap 15.5
openSUSE Leap 15.4
SUSE SLE-15-SP1
Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.