paolodepetrillo

The GainMap is more general than the lensfun vignetting model, but the lensfun model might be close enough that the extra complexity of the GainMap isn't worth implementing. The GainMap...

I got the raw2dng utility to build and run on Arch Linux using this [CMakeLists.txt](https://gist.github.com/paolodepetrillo/a3707e83f0dcdba4e34f6804112aaf78) file. The file goes in motioncam/raw2dng. I don't really know much about build systems and...

This is what's happening in channelmixerrgb.c to cause the problem: When the image is first loaded, `reload_defaults` gets the white balance from `find_temperature_from_raw_coeffs` as an xy chromaticity and sets the...

The illuminant for this particular image happens to be just barely under the threshold where it switches automatically from custom to daylight. In this case the difference between the custom...

LibRaw uses that 0x0805 tag for the white level: https://github.com/LibRaw/LibRaw/blob/6fffd414bfda63dfef2276ae07f7ca36660b8888/src/metadata/olympus.cpp#L404 Checking the Olympus samples from RPU, it doesn't ever seem to have an obviously way off value. Sometimes it is...

For the E-M1 II, the 0x0805 tag is always "4095 206" in all cases - I can't find any mode or setting that has any effect on it. For the...

I started experimenting with the opcode list processing here: https://github.com/paolodepetrillo/dnglab/tree/opcode-list-decode It doesn't actually apply any processing yet, but as of now it decodes all of the opcodes defined in DNG...

I will open another PR that puts the properties directly into RawMetadata. A while ago I had made this simple script [dngpreprocess](https://github.com/paolodepetrillo/raw2dng/tree/dngpreprocess) which used the Adobe DNG SDK to apply...

@butcherg I started working on lens correction in #97 - it should be possible to support the lensfun models eventually. Originally I was following the example of embedded metadata lens...

I think that putting this Bayer GainMap in denoise would work - that's similar to how I had added it to the rawprepare module in darktable. The opcode lists are...