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Code Issues Releases Activity

avfilter/vf_chromakey: fix diff scaling for chromahold filter

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This commit is contained in:
Paul B Mahol 2021-08-20 07:23:18 +02:00
parent 8990c5869e
commit ed6ea4f9ca
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vf_chromakey.c
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@ -197,7 +197,7 @@ static int do_chromahold_slice(AVFilterContext *avctx, void *arg, int jobnr, int
du = u - ctx->chromakey_uv[0];
dv = v - ctx->chromakey_uv[1];
diff = sqrt((du * du + dv * dv) / (255.0 * 255.0));
diff = sqrt((du * du + dv * dv) / (255.0 * 255.0 * 2.0));
alpha = diff > ctx->similarity;
if (ctx->blend > 0.0001) {
@ -236,7 +236,7 @@ static int do_chromahold16_slice(AVFilterContext *avctx, void *arg, int jobnr, i
du = u - ctx->chromakey_uv[0];
dv = v - ctx->chromakey_uv[1];
diff = sqrt((du * du + dv * dv) / (max * max));
diff = sqrt((du * du + dv * dv) / (max * max * 2.0));
alpha = diff > ctx->similarity;
if (ctx->blend > 0.0001) {