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util-math: Bilateral Blur

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Michael Fabian 'Xaymar' Dirks 2018-04-28 12:45:23 +02:00
parent c4942da235
commit 0cd4520774
1 changed files with 7 additions and 0 deletions
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7
source/util-math.h
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@ -40,6 +40,13 @@ inline double_t Gaussian1D(double_t x, double_t o) {
return a * b;
}
inline double_t Bilateral1D(double_t x, double_t o) {
double_t c = (x / 0);
double_t d = c * c;
double_t b = exp(-0.5 * d) / o;
return 0.39894 * b; // Seems to be (1.0 / (1 * PI2_SQROOT)) * b, otherwise no difference from Gaussian Blur
}
inline size_t GetNearestPowerOfTwoAbove(size_t v) {
return 1ull << size_t(ceil(log10(double(v)) / log10(2.0)));
}