ref: ff32369804d6a29c6ede4300eacc62e63b691db2
parent: 79a194692fd449b4fd10a6235aa59f285b6656c3
author: Marco <marpan@google.com>
date: Wed Nov 11 05:09:40 EST 2015
vp9 denoiser: Add another noise level to denoising. Change-Id: Idc755ab54e4f78bb7d75bc97634c451804edad99
--- a/vp9/encoder/vp9_denoiser.c
+++ b/vp9/encoder/vp9_denoiser.c
@@ -323,7 +323,7 @@
struct buf_2d src = mb->plane[0].src;
int is_skin = 0;
- if (bs <= BLOCK_16X16 && denoiser->denoising_level >= kDenMedium) {+ if (bs <= BLOCK_16X16 && denoiser->denoising_level >= kDenLow) {// Take center pixel in block to determine is_skin.
const int y_width_shift = (4 << b_width_log2_lookup[bs]) >> 1;
const int y_height_shift = (4 << b_height_log2_lookup[bs]) >> 1;
@@ -349,7 +349,7 @@
denoiser->increase_denoising = 0;
}
- if (denoiser->denoising_level >= kDenMedium)
+ if (denoiser->denoising_level >= kDenLow)
decision = perform_motion_compensation(denoiser, mb, bs,
denoiser->increase_denoising,
mi_row, mi_col, ctx,
@@ -524,6 +524,7 @@
#endif
denoiser->increase_denoising = 0;
denoiser->frame_buffer_initialized = 1;
+ denoiser->denoising_level = kDenLow;
return 0;
}
--- a/vp9/encoder/vp9_denoiser.h
+++ b/vp9/encoder/vp9_denoiser.h
@@ -27,6 +27,7 @@
} VP9_DENOISER_DECISION;
typedef enum vp9_denoiser_level {+ kDenLowLow,
kDenLow,
kDenMedium,
kDenHigh
--- a/vp9/encoder/vp9_noise_estimate.c
+++ b/vp9/encoder/vp9_noise_estimate.c
@@ -212,8 +212,10 @@
else
if (ne->value > ne->thresh)
ne->level = kMedium;
- else
+ else if (ne->value > (ne->thresh >> 1))
ne->level = kLow;
+ else
+ ne->level = kLowLow;
}
}
}
--- a/vp9/encoder/vp9_noise_estimate.h
+++ b/vp9/encoder/vp9_noise_estimate.h
@@ -24,6 +24,7 @@
#endif
typedef enum noise_level {+ kLowLow,
kLow,
kMedium,
kHigh
--
⑨