Zad6 #6
@ -18,22 +18,32 @@ PNM* BlurGaussian::transform()
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radius = (size/2)+1;
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sigma = getParameter("sigma").toDouble();
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return convolute(getMask(size, Normalize), RepeatEdge);
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return convolute(getMask(size, Normalize), CyclicEdge);
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}
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math::matrix<float> BlurGaussian::getMask(int size, Mode)
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{
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math::matrix<float> mask(size, size);
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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if(size%2!=0) radius=size/2;
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for(int i=-radius;i<=radius;i++)
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{
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for(int j=-radius;j<=radius;j++)
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{
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mask[i+radius][j+radius]=getGauss(i,j,sigma);
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}
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}
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return mask;
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}
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float BlurGaussian::getGauss(int x, int y, float sigma)
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{
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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return 0;
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float gauss= exp(-(x*x+y*y)/(2*sigma*sigma))/(2*M_PI*sigma*sigma);
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return gauss;
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}
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@ -13,12 +13,29 @@ BlurLinear::BlurLinear(PNM* img, ImageViewer* iv) :
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PNM* BlurLinear::transform()
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{
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int maskSize = getParameter("size").toInt();
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QList<QVariant> tmpMask = getParameter("mask").toList();
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bool normalize = getParameter("normalize").toBool();
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QList<QVariant> tmpMask = getParameter("mask").toList();
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bool normalize = getParameter("normalize").toBool();
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math::matrix<float> mask(maskSize, maskSize);
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math::matrix<float> mask(maskSize, maskSize);
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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int index = 0;
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float sum = 0;
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for (int x = 0; x < maskSize; x++) {
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for (int y = 0; y < maskSize; y++) {
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mask[x][y] = tmpMask.at(index).toDouble();
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index++;
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sum = sum + mask[x][y];
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}
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}
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return convolute(mask, RepeatEdge);
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if(normalize == true && sum != 0.0 ){
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for (int x = 0; x < maskSize; x++) {
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for (int y = 0; y < maskSize; y++) {
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mask[x][y] = mask[x][y] / sum;
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}
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}
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}
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return convolute(mask, CyclicEdge);
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}
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@ -14,7 +14,15 @@ math::matrix<float> BlurUniform::getMask(int size, Mode)
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{
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math::matrix<float> mask(size, size);
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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for(int i=0;i<size;i++)
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{
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for(int j=0;j<size;j++)
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{
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mask[i][j]=1.00;
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}
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}
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return mask;
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}
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@ -22,20 +22,98 @@ math::matrix<float> Convolution::getMask(int size, Mode mode = Normalize)
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{
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math::matrix<float> mask(size, size);
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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for (int x=0; x<size; x++)
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for (int y=0; y<size; y++)
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{
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mask[x][y] = 0;
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}
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int half=size/2;
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mask[half][half]=1;
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return mask;
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}
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/** Does the convolution process for all pixels using the given mask. */
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PNM* Convolution::convolute(math::matrix<float> mask, Mode mode = RepeatEdge)
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PNM* Convolution::convolute(math::matrix<float> mask, Mode mode = CyclicEdge)
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{
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int width = image->width(),
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height = image->height();
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int size=mask.rowno();
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PNM* newImage = new PNM(width, height, image->format());
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math::matrix<float> red_window(size, size);
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math::matrix<float> blue_window(size, size);
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math::matrix<float> gray_window(size, size);
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math::matrix<float> green_window(size, size);
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float mask_weight=sum(mask);
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float red_sum;
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float green_sum;
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float blue_sum;
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float gray_sum;
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for (int x=0; x<width; x++)
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for (int y=0; y<height; y++)
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{
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red_window=getWindow(x,y,size,RChannel,mode);
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blue_window=getWindow(x,y,size,BChannel,mode);
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green_window=getWindow(x,y,size,GChannel,mode);
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//gray_window=getWindow(x,y,size,LChannel,mode);
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red_window=join(red_window,mask);
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blue_window=join(blue_window,mask);
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green_window=join(green_window,mask);
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//gray_window=join(gray_window,mask);
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red_sum=sum(red_window);
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green_sum=sum(green_window);
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blue_sum=sum(blue_window);
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//gray_sum=sum(gray_window);
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if(mask_weight>0)
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{
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red_sum=red_sum/mask_weight;
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blue_sum=blue_sum/mask_weight;
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green_sum=green_sum/mask_weight;
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//gray_sum=gray_sum/mask_weight;
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}
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if(red_sum>=0 && red_sum<=255 && green_sum>=0 && green_sum<=255 && blue_sum>=0 && blue_sum<=255)
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{
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newImage->setPixel(x,y, QColor(red_sum,green_sum,blue_sum).rgb());
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}
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else if (red_sum>=0 && red_sum<=255 && green_sum>=0 && green_sum<=255)
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{
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int old_blue = qBlue(newImage->pixel(x,y));
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newImage->setPixel(x,y, QColor(red_sum,green_sum,old_blue).rgb());
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}
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else if (blue_sum>=0 && blue_sum<=255 && green_sum>=0 && green_sum<=255)
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{
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int old_red = qRed(newImage->pixel(x,y));
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newImage->setPixel(x,y, QColor(old_red,green_sum,blue_sum).rgb());
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}
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else if (blue_sum>=0 && blue_sum<=255 && red_sum>=0 && red_sum<=255)
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{
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int old_green = qGreen(newImage->pixel(x,y));
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newImage->setPixel(x,y, QColor(red_sum,old_green,blue_sum).rgb());
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}
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}
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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return newImage;
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}
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@ -48,7 +126,12 @@ const math::matrix<float> Convolution::join(math::matrix<float> A, math::matrix<
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int size = A.rowno();
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math::matrix<float> C(size, size);
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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for (int x=0; x<size; x++)
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for (int y=0; y<size; y++)
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{
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C[x][y]=A[x][y]*B[x][y];
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}
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return C;
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}
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@ -58,7 +141,15 @@ const float Convolution::sum(const math::matrix<float> A)
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{
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float sum = 0.0;
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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int size=A.rowno();
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for (int x=0; x<size; x++)
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for (int y=0; y<size; y++)
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{
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sum=sum+A[x][y];
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}
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return sum;
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@ -70,8 +161,20 @@ const math::matrix<float> Convolution::reflection(const math::matrix<float> A)
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{
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int size = A.rowno();
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math::matrix<float> C(size, size);
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int counter_i=0;
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int counter_j=0;
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for (int x=size-1; x>=0; x--)
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{
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for (int y=size-1; y>=0; y--)
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{
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C[x][y]=A[counter_i][counter_j];
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counter_j++;
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}
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counter_i++;
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}
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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return C;
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}
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@ -99,34 +99,59 @@ QRgb Transformation::getPixel(int x, int y, Mode mode)
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}
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/** Returns a pixel using the Cyclic mode:
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* pixel(x,y) = pixel(x%width, y%width);
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*
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*/
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QRgb Transformation::getPixelCyclic(int x, int y)
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{
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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int height=image->height();
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int width=image->width();
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/*
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if(x>width) x=x%width;
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if(y>height) y=y%height;
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if(x<0) x=width-x;
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if(y<0) y=height-y;
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*/
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x=(width+(x%width))%width;
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y=(height+(y%height))%height;
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return image->pixel(x,y);
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}
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/**
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* Returns a given pixel
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* If the pixel is out of image boundaries Black is returned;
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*/
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QRgb Transformation::getPixelNull(int x, int y)
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{
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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int height=image->height();
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int width=image->width();
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return image->pixel(x,y);
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QRgb pixel = image->pixel(x,y);
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if(x>width || x<0 || y>height || y<0)
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{
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int v=PIXEL_VAL_MAX;
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image->setPixel(x,y, QColor(v,v,v).rgb());
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}
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return pixel;
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}
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/**
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* Returns given pixel.
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* If the pixel is out of image boundaries
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* the nearest edge pixel is given
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*/
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QRgb Transformation::getPixelRepeat(int x, int y)
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{
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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int height=image->height();
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int width=image->width();
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if(x>width) x=width;
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if(y>height) y=height;
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if(x<0) x=0;
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if(y<0) y=0;
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return image->pixel(x,y);
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}
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@ -136,9 +161,26 @@ math::matrix<float> Transformation::getWindow(int x, int y, int size,
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Channel channel,
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Mode mode = RepeatEdge)
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{
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math::matrix<float> window(size,size);
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qDebug() << Q_FUNC_INFO << "Not implemented yet!";
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math::matrix<float> window(size,size);
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int temp,r;
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r=size/2;
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for(int i=-r;i<=r;i++)
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{
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for(int j=-r;j<=r;j++)
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{
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if(channel==RChannel) temp = qRed(getPixel(x+i,y+j, CyclicEdge));
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if(channel==GChannel) temp = qGreen (getPixel(x+i,y+j, CyclicEdge));
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if(channel==BChannel) temp = qBlue(getPixel(x+i,y+j, CyclicEdge));
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//if(channel==LChannel) temp= qGray(getPixel(i,j, mode));
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window[i+r][j+r]=temp;
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}
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}
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return window;
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}
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Block a user