diff --git a/libavfilter/vf_bm3d.c b/libavfilter/vf_bm3d.c index 2343f2e114..e5d2b8bc63 100644 --- a/libavfilter/vf_bm3d.c +++ b/libavfilter/vf_bm3d.c @@ -443,7 +443,7 @@ static void basic_block_filtering(BM3DContext *s, const uint8_t *src, int src_li } } - threshold[0] = s->hard_threshold * s->sigma; + threshold[0] = s->hard_threshold * s->sigma * M_SQRT2 * block_size * block_size * (1 << (s->depth - 8)) / 255.f; threshold[1] = threshold[0] * sqrtf(2.f); threshold[2] = threshold[0] * 2.f; threshold[3] = threshold[0] * sqrtf(8.f);