56 lines
1008 B
C++
56 lines
1008 B
C++
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#include "edge_laplacian_of_gauss.h"
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#include "blur_gaussian.h"
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EdgeLaplaceOfGauss::EdgeLaplaceOfGauss(PNM* img) :
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Convolution(img)
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{
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}
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EdgeLaplaceOfGauss::EdgeLaplaceOfGauss(PNM* img, ImageViewer* iv) :
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Convolution(img, iv)
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{
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}
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math::matrix<float> EdgeLaplaceOfGauss::getMask()
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{
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size = getParameter("size").toInt();
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double sigma = getParameter("sigma").toDouble();
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math::matrix<float> mask(size, size);
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int center = -size / 2;
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for (int x = 0, k = center; x < size; x++, k++)
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{
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for (int y = 0, l = center; y < size; y++, l++)
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{
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mask(x, y) = getLoG(k, l, sigma);
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}
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}
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return mask;
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}
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float EdgeLaplaceOfGauss::getLoG(int x, int y, float s)
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{
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int px = pow(x, 2);
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int py = pow(y, 2);
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float ps = pow(s, 2);
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int numerator = px + py - 2;
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int gauss = BlurGaussian::getGauss(x, y, ps);
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int result = (numerator / ps) * gauss;
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return result;
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}
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int EdgeLaplaceOfGauss::getSize()
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{
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return size;
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}
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