60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
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#include "edge_zero.h"
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#include "edge_laplacian_of_gauss.h"
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EdgeZeroCrossing::EdgeZeroCrossing(PNM* img) :
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Convolution(img)
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{
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}
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EdgeZeroCrossing::EdgeZeroCrossing(PNM* img, ImageViewer* iv) :
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Convolution(img, iv)
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{
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}
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PNM* EdgeZeroCrossing::transform()
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{
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int size = getParameter("size").toInt();
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double sigma = getParameter("sigma").toDouble();
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int t = getParameter("threshold").toInt();
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int width = image->width();
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int height = image->height();
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int t_width;
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int t_height;
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PNM* newImage = new PNM(width, height, QImage::Format_Grayscale8);
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EdgeLaplaceOfGauss *laplace_gauss = new EdgeLaplaceOfGauss(image);
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laplace_gauss->setParameter("size", size);
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laplace_gauss->setParameter("sigma", sigma);
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PNM* transformed_image = laplace_gauss->transform();
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t_width = transformed_image->width();
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t_height = transformed_image->height();
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for (int i = 0; i < t_width; i++)
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{
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for (int j = 0; j < t_height; j++)
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{
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math::matrix<float> window = laplace_gauss->getWindow(i, j, size, LChannel, RepeatEdge);
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if (window.min() < (128 - t) && window.max() > (128 + t))
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{
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QRgb pixel = transformed_image->pixel(i, j);
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newImage->setPixel(i, j, QColor(pixel).rgb());
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}
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else
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{
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newImage->setPixel(i, j, QColor(0,0,0).rgb());
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}
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}
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}
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return newImage;
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}
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