I did another search through the various Android repos to see if there were any new FOSS photo related apps, and I came across DCraw Mobile in the play store. As far as I can tell, this is a fairly direct port of DCraw wrapped with a minimal Android GUI. It’s released “free” and ad-free on the play store, but I cant figure our the actual license it’s released under, nor could I find the source code, so I can’t say for sure if it is FOSS. It’s based on a FOSS core anyway, and at least is proof of concept that DCraw can be ported to Android.
It does fill an important gap, however, allowing the translation of many camera raw formats to jpeg or tiff. Importantly, this includes 16bit tiff, as well as 8bit. So, combined with open camera, we now have a potential Foss pipeline to produce editable high bit depth TIFF files. We are still missing a good Android editor though, but these tiffs could at least be processed by online tools like the great film emulator made by @Jonas_Wagner and @patdavid.
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