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darktable-org / rawspeed

fast raw decoding library
GNU Lesser General Public License v2.1
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Samsung EX2F: correct white point #726

Closed ge0rg closed 4 months ago

ge0rg commented 4 months ago

The old white-point of 4095 yields pink spots in the sky in bright pictures (sample submitted to RPU). This PR reduces the value to 4000, similar to the NX mini.

Slightly higher values may work as well, I don't know how to correctly calibrate that value from an over-exposed image.

LebedevRI commented 4 months ago

@ge0rg i have not verified this, i'm going to assume that you as an affected user checked that this makes sense.

LebedevRI commented 4 months ago

@ge0rg thank you!

ge0rg commented 4 months ago

Thanks very much. I'm trying hard to qualify as the Samsung-camera-weirdo, and I've done only a bit of RAW shooting with the EX2F so far, and 4000 looks like it works for all shots. I'll post more PRs / issues if I encounter more issues :)