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ikorb / gcvideo

GameCube Digital AV converter
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Gamma Correction Option #40

Open Finatra opened 4 years ago

Finatra commented 4 years ago

When using the scanline feature, the image gets significantly darker. Would it be possible to gamma correct according to the scanline intensity?

The brightness/contrast settings are nice, but don't solve this particular issue.

ikorb commented 4 years ago

Yes, that's the nature of artificial scanlines - I don't think I've seen a generator yet that offers gamma-correction for the non-darkened parts of the image.

I think it might be possible, although with the limitation that the video signal is just 8 bits, so you might get banding in the dark parts and loss of color resolution (two input colors mapped to the same output color) in the bright parts.

Finatra commented 4 years ago

I can't speak for everyone, but personally I would GLADLY sacrifice some color accuracy/banding for this feature. I mainly play on 31kHz CRT Monitors.

For others, since GCVideo supports Chroma interpolation, I wonder if something similar could be done to mitigate Gamma Correction artifacts.

Cheers :)