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capture sharpening: first mockup

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This commit is contained in:
Ingo Weyrich
2019-08-14 17:19:26 +02:00
parent 4fdcaada1c
commit 506254ce46
20 changed files with 441 additions and 12 deletions
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12
rtengine/color.h
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@@ -1804,6 +1804,18 @@ public:
return (hr);
}
static inline void RGB2YCbCr(float R, float G, float B, float &Y, float &Cb, float &Cr) {
Y = 0.2627f * R + 0.6780f * G + 0.0593f * B;
Cb = -0.2627f * R - 0.6780f * G + (1.f - 0.0593f) * B;
Cr = (1.f - 0.2627f) * R - 0.6780f * G - 0.0593f * B;
}
static inline void YCbCr2RGB(float Y, float Cb, float Cr, float &R, float &G, float &B) {
R = std::max(Y + Cr, 0.f);
G = std::max(Y - (0.0593f / 0.6780f) * Cb - (0.2627f / 0.6780f) * Cr, 0.f);
B = std::max(Y + Cb, 0.f);
}
};
}