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vp9: Some adjustments to denoiser under high-noise condition.

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Change-Id: Ib47d742d07f13c7c39cea85e228c19ae298baf4a
This commit is contained in:
Marco 2016-04-22 10:30:21 -07:00
parent 2c8338f982
commit 80bbba1494
1 changed files with 7 additions and 4 deletions
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11
vp9/encoder/vp9_denoiser.c
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@ -215,7 +215,8 @@ static VP9_DENOISER_DECISION perform_motion_compensation(VP9_DENOISER *denoiser,
// Avoid denoising for small block (unless motion is small). // Avoid denoising for small block (unless motion is small).
// Small blocks are selected in variance partition (before encoding) and // Small blocks are selected in variance partition (before encoding) and
// will typically lie on moving areas. // will typically lie on moving areas.
if (motion_magnitude > 16 && bs <= BLOCK_8X8) if (denoiser->denoising_level < kDenHigh &&
motion_magnitude > 16 && bs <= BLOCK_8X8)
return COPY_BLOCK; return COPY_BLOCK;
// If the best reference frame uses inter-prediction and there is enough of a // If the best reference frame uses inter-prediction and there is enough of a
@ -242,6 +243,9 @@ static VP9_DENOISER_DECISION perform_motion_compensation(VP9_DENOISER *denoiser,
ctx->best_sse_inter_mode = ZEROMV; ctx->best_sse_inter_mode = ZEROMV;
ctx->best_sse_mv.as_int = 0; ctx->best_sse_mv.as_int = 0;
*zeromv_filter = 1; *zeromv_filter = 1;
if (denoiser->denoising_level > kDenMedium) {
motion_magnitude = 0;
}
} }
if (ctx->newmv_sse > sse_thresh(bs, increase_denoising)) { if (ctx->newmv_sse > sse_thresh(bs, increase_denoising)) {
@ -334,7 +338,7 @@ void vp9_denoiser_denoise(VP9_COMP *cpi, MACROBLOCK *mb,
if (cpi->use_skin_detection && if (cpi->use_skin_detection &&
bs <= BLOCK_32X32 && bs <= BLOCK_32X32 &&
denoiser->denoising_level >= kDenLow) { denoiser->denoising_level < kDenHigh) {
int motion_level = (motion_magnitude < 16) ? 0 : 1; int motion_level = (motion_magnitude < 16) ? 0 : 1;
// If motion for current block is small/zero, compute consec_zeromv for // If motion for current block is small/zero, compute consec_zeromv for
// skin detection (early exit in skin detection is done for large // skin detection (early exit in skin detection is done for large
@ -375,8 +379,7 @@ void vp9_denoiser_denoise(VP9_COMP *cpi, MACROBLOCK *mb,
motion_level); motion_level);
} }
if (!is_skin && if (!is_skin &&
denoiser->denoising_level == kDenHigh && denoiser->denoising_level == kDenHigh) {
motion_magnitude < 16) {
denoiser->increase_denoising = 1; denoiser->increase_denoising = 1;
} else { } else {
denoiser->increase_denoising = 0; denoiser->increase_denoising = 0;