Raw editing on Android?

[PkmX]

@Isaac

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.

Nice find! Judging from the screenshots, the UI seems to be much better than I expected (was expecting some horrible Android 2.x style UI ).

Now I wonder if there are small and portable library that performs wavelet processing that can be ported to Android. Following the UNIX philosophy of doing one thing and doing it well, we could combine dcraw (RAW decode and demosaic), the wavelet library (noise reduction, sharpening, local contrast, etc) and haldcluts (tone and color adjustments), hook them up with some UI and we could end up with a basic pipeline for processing RAW images on Android, all done with free software.

My other plan is porting Hugin and Enfuse to Android (AFAIK Hugin has been done by CM). We use Camera2 API to take slightly under-exposed burst images, align them using Hugin and blend them together using Enfuse/Enblend to minimize noise in shadow areas and preserve highlights. This is how Google Camera’s HDR+ works, but the implementation is proprietary and I think it is also tied to the hardware so it can process them very fast.