I was using the Proxel X3F tool to look at the actual raw data in a Sigma X3F file and decided to play with the extracted image.
I extracted a TIF with a gamma of 1.0, then applied a tonal curve. The results almost remind me of a faux infrared rendition.
diglloyd:x3f lloyd$ ./x3f_extract -gamma 1.0 test.X3F READ THE X3F FILE test.X3F Load RAW from test.X3F Dump RAW as TIFF to test.X3F.tif min = 13 max = 3581 gamma = 1.000000e+00
The color version is far more appealing in general, but it’s always useful to keep in mind other possibilities for unusual purposes.