/* * Copyright (c) 2014 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree.
*/
// metrics used for calculating ssim, ssim2, dssim, and ssimc typedefstruct { // source sum ( over 8x8 region )
uint32_t sum_s;
// reference sum (over 8x8 region )
uint32_t sum_r;
// source sum squared ( over 8x8 region )
uint32_t sum_sq_s;
// reference sum squared (over 8x8 region )
uint32_t sum_sq_r;
// sum of source times reference (over 8x8 region)
uint32_t sum_sxr;
// calculated ssim score between source and reference double ssim;
} Ssimv;
// metrics collected on a frame basis typedefstruct { // ssim consistency error metric ( see code for explanation ) double ssimc;
// standard ssim double ssim;
// revised ssim ( see code for explanation) double ssim2;
// ssim restated as an error metric like sse double dssim;
// dssim converted to decibels double dssimd;
// ssimc converted to decibels double ssimcd;
} Metrics;
double vpx_get_ssim_metrics(uint8_t *img1, int img1_pitch, uint8_t *img2, int img2_pitch, int width, int height, Ssimv *sv2,
Metrics *m, int do_inconsistency);
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