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chromahold: Make everything greyscale if the target color is grey

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This commit is contained in:
Sebastian Dröge 2010-10-06 15:21:09 +02:00
parent fa2a4af5bb
commit 10e0187df1
1 changed files with 2 additions and 2 deletions
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4
gst/coloreffects/gstchromahold.c
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@ -308,7 +308,7 @@ rgb_to_hue (gint r, gint g, gint b)
C = M - m; C = M - m;
if (C == 0) { if (C == 0) {
h = 0; return G_MAXUINT;
} else if (M == r) { } else if (M == r) {
h = ((g - b) / C) % 6; h = ((g - b) / C) % 6;
} else if (M == g) { } else if (M == g) {
@ -370,7 +370,7 @@ gst_chroma_hold_process_xrgb (guint8 * dest, gint width,
h2 = rgb_to_hue (r, g, b); h2 = rgb_to_hue (r, g, b);
diff = hue_dist (h1, h2); diff = hue_dist (h1, h2);
if (diff > tolerance) { if (h1 == G_MAXUINT || diff > tolerance) {
grey = (13938 * r + 46869 * g + 4730 * b) >> 16; grey = (13938 * r + 46869 * g + 4730 * b) >> 16;
grey = CLAMP (grey, 0, 255); grey = CLAMP (grey, 0, 255);
dest[p[1]] = grey; dest[p[1]] = grey;