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Image quality improvements for the rear camera. This is getting somewhere :)

@martijnbraam Looks surprising but does the sensor area have a 4:3 ratio?

@lanodan yes, most sensors are actually 4:3, most phones just default to a 16:9 crop

@martijnbraam it's already better than the camera of my j5nlte back when I had the Stock ROM running on it

@martijnbraam
I'm curious... what image processing are you running over the raw sensor data? White balance and noise reduction?

@Blort in this picture heavy white balancing, fixing the black level and exposure and saturation.

I have a newer version of the .dng writer already that writes the correct colors so white balancing isn't needed anymore.

@martijnbraam
And what about noise reduction? I'm wondering if we could do something like capturing 3-5 successive frames, aligning them and then using the median color value to get noise reduction over time instead of space, and remove the "oil painting effect"? I imagine that this world take quite a bit of processing power, but maybe with a background process separate from the UI and some form of GPU acceleration (magically applied with hand-waving 😜) ?

@Blort that's exactly what the code in the hdr-plus repository does :)

@martijnbraam
Oh... nice! Well, here's hoping we can find a #FOSS version that actually compiles!

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