External denoiser based on noise estimation and moving object detection.

webrtc/modules/video_processing/util/denoiser_filter.cc

Index: webrtc/modules/video_processing/util/denoiser_filter.cc
diff --git a/webrtc/modules/video_processing/util/denoiser_filter.cc b/webrtc/modules/video_processing/util/denoiser_filter.cc
index a9c6f005d96cfd1059a69bf01572b47ed0b3b13e..093543a0cd423ae0524298fa9cbf8809bcc2a96e 100644
--- a/webrtc/modules/video_processing/util/denoiser_filter.cc
+++ b/webrtc/modules/video_processing/util/denoiser_filter.cc
@@ -18,8 +18,9 @@
 namespace webrtc {
 
 const int kMotionMagnitudeThreshold = 8 * 3;
-const int kSumDiffThreshold = 16 * 16 * 2;
-const int kSumDiffThresholdHigh = 600;
+const int kSumDiffThreshold = 96;
+const int kSumDiffThresholdHigh = 448;
+const int kSumDiffThresholdMax = INT_MAX;
 
 std::unique_ptr<DenoiserFilter> DenoiserFilter::Create(
     bool runtime_cpu_detection) {