zadania 4(done) i 5(in progress)

src/core/transformations/blur_gaussian.cpp

@@ -24,16 +24,18 @@ PNM* BlurGaussian::transform()
 math::matrix<float> BlurGaussian::getMask(int size, Mode)
 {
     math::matrix<float> mask(size, size);
-
+    for (int x=0;x<size;++x) {
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+        for (int y=0;y<size;++y) {
-
+            mask[x][y] = getGauss(x - int(size / 2), y - int(size / 2), sigma);
+        }
+    }
     return mask;
 }
 
 float BlurGaussian::getGauss(int x, int y, float sigma)
 {    
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    return exp(-((pow(x, 2.0) + pow(y, 2.0)) / (2 * pow(sigma, 2.0))))
-
+            /
-    return 0;
+            (2 * M_PI * pow(sigma, 2.0));
 }
 

src/core/transformations/blur_linear.cpp

@@ -18,7 +18,22 @@ PNM* BlurLinear::transform()
 
     math::matrix<float> mask(maskSize, maskSize);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    double maskSum = 0.0;
+    if (normalize) {
+        for (int i=0;i<tmpMask.size();++i) {
+            maskSum += tmpMask.at(i).toDouble();
+        }
+    }
+
+    for (int x=0;x<maskSize;++x) {
+        for (int y=0;y<maskSize;++y) {
+            double val = tmpMask.at((y * maskSize) + x).toDouble();
+            if (normalize && maskSum != 0.0) {
+                val /= maskSum;
+            }
+            mask[x][y] = val;
+        }
+    }
 
     return convolute(mask, RepeatEdge);
 }

src/core/transformations/blur_uniform.cpp

@@ -14,7 +14,11 @@ math::matrix<float> BlurUniform::getMask(int size, Mode)
 {
     math::matrix<float> mask(size, size);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+        for (int x=0; x<size; ++x) {
+            for (int y=0; y<size; ++y) {
+                mask[x][y] = 1.0;
+            }
+        }
 
-    return mask;
+        return mask;
 }

src/core/transformations/convolution.cpp

@@ -17,17 +17,21 @@ PNM* Convolution::transform()
     return convolute(getMask(3, Normalize), RepeatEdge);
 }
 
-/** Returns a sizeXsize matrix with the center point equal 1.0 */
+math::matrix<float> Convolution::getMask(int size, Mode mode = Normalize) {
-math::matrix<float> Convolution::getMask(int size, Mode mode = Normalize)
-{
     math::matrix<float> mask(size, size);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+        for (int i=0; i<size; ++i) {
+            for (int j=0; j<size; ++j) {
+                if (i / 2 == size / 2)
+                    mask[i][j] = 1;
+                else
+                    mask[i][j] = 0;
+            }
+        }
 
-    return mask;
+        return mask;
 }
 
-/** Does the convolution process for all pixels using the given mask. */
 PNM* Convolution::convolute(math::matrix<float> mask, Mode mode = RepeatEdge)
 {
     int width  = image->width(),
@@ -35,43 +39,79 @@ PNM* Convolution::convolute(math::matrix<float> mask, Mode mode = RepeatEdge)
 
     PNM* newImage = new PNM(width, height, image->format());
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    float weight = sum(mask);
+
+    for (int x=0; x<width; ++x) {
+        for (int y=0; y<height; ++y) {
+
+            math::matrix<float> window = getWindow(x, y, mask.colsize(), RChannel, mode);
+            float summ = sum(join(window, mask));
+            if (weight != 0) summ = summ / weight;
+            if (summ < 0) summ = 0;
+            else if (summ > 255) summ = 255;
+            int r = summ;
+
+            window = getWindow(x, y, mask.colsize(), GChannel, mode);
+            summ = sum(join(window, mask));
+            if (weight != 0) summ = summ / weight;
+            if (summ < 0) summ = 0;
+            else if (summ > 255) summ = 255;
+            int g = summ;
+
+            window = getWindow(x, y, mask.colsize(), BChannel, mode);
+            summ = sum(join(window, mask));
+            if (weight != 0) summ = summ / weight;
+            if (summ < 0) summ = 0;
+            else if (summ > 255) summ = 255;
+            int b = summ;
+
+            newImage->setPixel(x, y, QColor(r,g,b).rgb());
+        }
+    }
 
     return newImage;
 }
 
-/** Joins to matrices by multiplying the A[i,j] with B[i,j].
+
-  * Warning! Both Matrices must be squares with the same size!
-  */
 const math::matrix<float> Convolution::join(math::matrix<float> A, math::matrix<float> B)
 {
     int size = A.rowno();
     math::matrix<float> C(size, size);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    for (int i = 0; i < size; i++) {
+      for (int j = 0; j < size; j++) {
+          C[i][j] = A[i][j] * B[i][j];
+      }
+    }
 
     return C;
 }
 
-/** Sums all of the matrixes elements */
 const float Convolution::sum(const math::matrix<float> A)
 {
     float sum = 0.0;
+    int size = A.rowno();
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    for (int i = 0; i < size; i++) {
+        for (int j = 0; j < size; j++) {
+           sum += A[i][j];
+        }
+    }
 
     return sum;
-
 }
 
-
-/** Returns reflected version of a matrix */
 const math::matrix<float> Convolution::reflection(const math::matrix<float> A)
 {
     int size = A.rowno();
     math::matrix<float> C(size, size);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    for (int i=0; i<size; ++i) {
+        for (int j=0; j<size; ++j) {
+            C[size - i][size - j] = A[i][j];
+        }
+    }
 
     return C;
 }
+

src/core/transformations/edge_gradient.cpp

@@ -24,8 +24,30 @@ PNM* EdgeGradient::transform()
 {
     PNM* newImage = new PNM(image->width(), image->height(), image->format());
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+        PNM* horizontal = horizontalDetection();
+        PNM* vertical = verticalDetection();
 
-    return newImage;
+        for (int x=0;x<image->width();++x) {
+            for (int y=0;y<image->height();++y) {
+
+                int hp = horizontal->pixel(x,y);
+                int vp = vertical->pixel(x,y);
+
+                int r = sqrt(pow(qRed(hp), 2.0) + pow(qRed(vp), 2.0));
+                int g = sqrt(pow(qGreen(hp), 2.0) + pow(qGreen(vp), 2.0));
+                int b = sqrt(pow(qBlue(hp), 2.0) + pow(qBlue(vp), 2.0));
+                if (r < 0) r = 0;
+                if (r > 255) r = 255;
+                if (g < 0) r = 0;
+                if (g > 255) r = 255;
+                if (b < 0) r = 0;
+                if (b > 255) r = 255;
+
+
+                newImage->setPixel(x, y, QColor(r,g,b).rgb());
+            }
+        }
+
+        return newImage;
 }
 

src/core/transformations/edge_laplacian.cpp

@@ -15,8 +15,14 @@ math::matrix<float> EdgeLaplacian::getMask(int, Mode)
     int size = getParameter("size").toInt();
     math::matrix<float> mask(size, size);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    for (int i=0;i<size;++i) {
+        for (int j=0;j<size;++j) {
+            if (i == size/2 && j == size/2)
+                mask[i][j] = (size*size) - 1;
+            else
+                mask[i][j] = -1;
+        }
+    }
 
     return mask;
 }
-

src/core/transformations/edge_prewitt.cpp

@@ -14,6 +14,11 @@ EdgePrewitt::EdgePrewitt(PNM*img, ImageViewer* iv) :
 
 void EdgePrewitt::prepareMatrices()
 {
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    float array_x[9] = {1,0,-1,1,0,-1,1,0,-1};
+
+    float array_y[9] = {1,1,1,0,0,0,-1,-1,-1};
+
+    g_x = math::matrix<float>(3,3, array_x);
+    g_y = math::matrix<float>(3,3, array_y);
 }
 

src/core/transformations/edge_roberts.cpp

@@ -14,5 +14,10 @@ EdgeRoberts::EdgeRoberts(PNM* img, ImageViewer* iv) :
 
 void EdgeRoberts::prepareMatrices()
 {
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    float array_x[4] = {0, -1, 1, 0};
+
+    float array_y[4] = {-1, 0, 0, 1};
+
+    g_x = math::matrix<float>(2,2, array_x);
+    g_y = math::matrix<float>(2,2, array_y);
 }

src/core/transformations/edge_sobel.cpp

@@ -14,7 +14,11 @@ EdgeSobel::EdgeSobel(PNM* img) :
 
 void EdgeSobel::prepareMatrices()
 {
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    float array_x[9] = {1,0,-1,2,0,-2,1,0,-1};
+    float array_y[9] = {1,2,1,0,0,0,-1,-2,-1};
+
+    g_x = math::matrix<float>(3,3, array_x);
+    g_y = math::matrix<float>(3,3, array_y);
 }
 
 math::matrix<float>* EdgeSobel::rawHorizontalDetection()

src/core/transformations/transformation.cpp

@@ -86,7 +86,6 @@ PNM* Transformation::getImage()
     return image;
 }
 
-/** Returns a pixel value at given coordinates using different modes */
 QRgb Transformation::getPixel(int x, int y, Mode mode)
 {
     switch (mode) {
@@ -95,50 +94,61 @@ QRgb Transformation::getPixel(int x, int y, Mode mode)
     case RepeatEdge:    return getPixelRepeat(x,y);
     default:            return image->pixel(x,y);
     }
-
 }
 
-/** Returns a pixel using the Cyclic mode:
+QRgb Transformation::getPixelCyclic(int x, int y) {
- *  pixel(x,y) = pixel(x%width, y%width);
+    int width = image->size().width();
- */
+    int height = image->size().height();
-QRgb Transformation::getPixelCyclic(int x, int y)
+    return image->pixel(x % width,y % height);
-{
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
-
-    return image->pixel(x,y);
 }
 
-/**
-  * Returns a given pixel
-  * If the pixel is out of image boundaries Black is returned;
-  */
 QRgb Transformation::getPixelNull(int x, int y)
 {
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    const QRgb blackPixel = qRgb(0, 0, 0);
+
+    int width = image->size().width();
+    int height = image->size().height();
+    if (x >= width || x < 0 || y >= height || y < 0)
+        return blackPixel;
 
     return image->pixel(x,y);
 }
 
-/**
-  * Returns given pixel.
-  * If the pixel is out of image boundaries
-  * the nearest edge pixel is given
-  */
 QRgb Transformation::getPixelRepeat(int x, int y)
 {
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    int width = image->size().width();
+    int height = image->size().height();
 
+    if (x >= width) x = width - 1;
+    if (x < 0) x = 0;
+
+    if (y >= height) y = height - 1;
+    if (y < 0) y = 0;
     return image->pixel(x,y);
 }
 
-/** Returns a size x size part of the image centered around (x,y) */
 math::matrix<float> Transformation::getWindow(int x, int y, int size,
-                                              Channel channel,
+                                              Channel channel = LChannel,
                                               Mode mode = RepeatEdge)
 {
     math::matrix<float> window(size,size);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    for (int i=0; i<size; ++i) {
+        for (int j=0; j<size; ++j) {
+
+            QRgb pixel = getPixel(x - int(size/2) + i, y - int(size/2) + j, mode);
+
+            int pixelVal;
+
+            if (channel == RChannel) pixelVal = qRed(pixel);
+            if (channel == GChannel) pixelVal = qGreen(pixel);
+            if (channel == BChannel) pixelVal = qBlue(pixel);
+            if (channel == LChannel) pixelVal = qGray(pixel);
+
+
+            window[i][j] = pixelVal;
+        }
+    }
 
     return window;
 }