diff options
| author | Paul B Mahol <onemda@gmail.com> | 2020-05-16 20:45:53 +0300 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2020-05-19 21:10:34 +0300 |
| commit | 8b0575d7638f40730c020ada41a573fff715c1a7 (patch) | |
| tree | 6adff0a3fce00dd5c68f99f08e2f8e83878b786c /libavfilter/vf_colorkey.c | |
| parent | f63939dedb898dd711860c530287ede55b6d88d7 (diff) | |
avfilter/vf_colorkey: fix formula for calculation of difference
Also fixes colorhold filtering.
Diffstat (limited to 'libavfilter/vf_colorkey.c')
| -rw-r--r-- | libavfilter/vf_colorkey.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/vf_colorkey.c b/libavfilter/vf_colorkey.c index 7af426a61e..0ac847c633 100644 --- a/libavfilter/vf_colorkey.c +++ b/libavfilter/vf_colorkey.c @@ -45,7 +45,7 @@ static uint8_t do_colorkey_pixel(ColorkeyContext *ctx, uint8_t r, uint8_t g, uin int dg = (int)g - ctx->colorkey_rgba[1]; int db = (int)b - ctx->colorkey_rgba[2]; - double diff = sqrt((dr * dr + dg * dg + db * db) / (255.0 * 255.0)); + double diff = sqrt((dr * dr + dg * dg + db * db) / (255.0 * 255.0 * 3.0)); if (ctx->blend > 0.0001) { return av_clipd((diff - ctx->similarity) / ctx->blend, 0.0, 1.0) * 255.0; |