Memory + runtime optimizations, PSNR, LPIPS #2
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luminance gaussian is two pass - 0.5ms MSSIM on GPU - 2.5 ms
compute all gaussians at the same time
13 ms faster for 2560x1440 image
160 ms faster for 2560x1440 image on repeat runs
- 10% faster compute as a result by reducing memory waits
Library usage of FSIM is now easier
- blit output image from RGBA f32 to RGBA u8 - reuses input image - 50% faster benchmark run
- -20% memory usage by packing intermediate results - report mean value as numerical IQM
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