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lpo-image-processing/08/do_sprawdzenia/cpp/edge_laplacian_of_gauss.cpp

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2021-04-06 13:34:01 +02:00
#include "edge_laplacian_of_gauss.h"
#include "blur_gaussian.h"
EdgeLaplaceOfGauss::EdgeLaplaceOfGauss(PNM* img) :
Convolution(img)
{
}
EdgeLaplaceOfGauss::EdgeLaplaceOfGauss(PNM* img, ImageViewer* iv) :
Convolution(img, iv)
{
}
math::matrix<float> EdgeLaplaceOfGauss::getMask()
{
size = getParameter("size").toInt();
double sigma = getParameter("sigma").toDouble();
math::matrix<float> mask(size, size);
int center = -size / 2;
for (int x = 0, k = center; x < size; x++, k++)
{
for (int y = 0, l = center; y < size; y++, l++)
{
mask(x, y) = getLoG(k, l, sigma);
}
}
return mask;
}
float EdgeLaplaceOfGauss::getLoG(int x, int y, float s)
{
int px = pow(x, 2);
int py = pow(y, 2);
float ps = pow(s, 2);
int numerator = px + py - 2;
int gauss = BlurGaussian::getGauss(x, y, ps);
int result = (numerator / ps) * gauss;
return result;
}
int EdgeLaplaceOfGauss::getSize()
{
return size;
}