du = (int)u[i] - ctx->chromakey_uv[0];
dv = (int)v[i] - 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));
}
diff /= 9.0;
du = (int)u[i] - ctx->chromakey_uv[0];
dv = (int)v[i] - ctx->chromakey_uv[1];
- diff += sqrt((du * du + dv * dv) / (max * max));
+ diff += sqrt((du * du + dv * dv) / (max * max * 2));
}
diff /= 9.0;