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Speedup and some bugfixes for Noise Reduction, Issue 2557 #60

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Ingo
2014-12-14 19:07:36 +01:00
parent c6d7c6f012
commit 8cb59b06c4
18 changed files with 2751 additions and 3516 deletions
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15
rtengine/color.h
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@@ -296,6 +296,7 @@ public:
* @param xyz_rgb[3][3] transformation matrix to use for the conversion
*/
static void rgbxyz (float r, float g, float b, float &x, float &y, float &z, const double xyz_rgb[3][3]);
static void rgbxyz (float r, float g, float b, float &x, float &y, float &z, const float xyz_rgb[3][3]);
/**
@@ -427,8 +428,8 @@ public:
}
static inline float f2xyz(float f) {
const float epsilonExpInv3 = 6.0f/29.0f;
const float kappaInv = 27.0f/24389.0f; // inverse of kappa
const float epsilonExpInv3 = 0.20689655f; // 6.0f/29.0f;
const float kappaInv = 0.0011070565f; // 27.0f/24389.0f; // inverse of kappa
return (f > epsilonExpInv3) ? f*f*f : (116.f * f - 16.f) * kappaInv;
}
@@ -891,6 +892,16 @@ public:
static inline double gamman (double x, double gamma) { //standard gamma without slope...
return (x =exp(log(x)/gamma));
}
/**
* @brief Very basic gamma
* @param x red, green or blue channel's value [0 ; 1]
* @param gamma gamma value [1 ; 5]
* @return the gamma modified's value [0 ; 1]
*/
static inline float gammanf (float x, float gamma) { //standard gamma without slope...
return (x =xexpf(xlogf(x)/gamma));
}
/**