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MiSTer-devel / Filters_MiSTer

Custom Filters for MiSTer's HDMI Scaler
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SNES core filters #8

Closed yxkalle closed 4 years ago

yxkalle commented 4 years ago

Special variants of the Gaussian filters tailored for the double (512px) horizontal resolution of this core. The main reason I created this was to reduce shimmering while keeping a sharp image.

ghogan42 commented 4 years ago

Sounds good to me. I think you used the matab code and then made the filter wider, right?

Do the variants match the original Gaussian_Sharp filters in sharpness? Like SNES_Gaussian_Sharp_05 for a 512x224 image matches Gaussian_Sharp_05 on a 256x224 image? I'll double check them I guess and either accept the pull request or use a different set that matches the old ones if necessary.

yxkalle commented 4 years ago

Yes, they produce a matching sharpness to the originals. I actually wrote my own code for generating them, as I don't have matlab. I made sure that for example sigma=0.2 generated an identical filter core to the original before "widening" it.