Replace binary log in segmentation_optimize with a polynomial approximation in Q11
#3004
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Translated-By: David Michael Barr <b@rr-dav.id.au>
AWCY results for objective-1-fast at default speed:
PSNR Y | PSNR Cb | PSNR Cr | CIEDE2000 | SSIM | MS-SSIM
0.4305 | 0.3834 | -0.2535 | 0.1353 | -0.2666 | -0.2792
PSNR-HVS Y | PSNR-HVS Cb | PSNR-HVS Cr | PSNR-HVS | VMAF | VMAF-NEG
0.3404 | 0.4239 | -0.1232 | 0.4060 | 0.1488 | 0.1788
lu-zero
reviewed
Aug 29, 2022
lu-zero
approved these changes
Aug 29, 2022
|
Sure, I tried to translate as faithfully to the original code as possible while meeting language, formatting and linting constraints. |
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Adapted from
oc_blog32_q10()in libtheora with blessing from @tterribe.AWCY results on ojective-1-fast at default speed: