s452126/lpo-projekt2020
2
1
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Zad6 #6

Merged
s452117 merged 3 commits from Zadanie_06_Dawid into master 2020-04-06 23:49:59 +02:00
Conversation 0 Commits 3 Files Changed 4 +212 -32
5 changed files with 212 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit fd6ca73279 - Show all commits

18
src/core/transformations/blur_gaussian.cpp
View File

@ -18,22 +18,32 @@ PNM* BlurGaussian::transform()
radius = (size/2)+1;
sigma = getParameter("sigma").toDouble();
return convolute(getMask(size, Normalize), RepeatEdge);
return convolute(getMask(size, Normalize), CyclicEdge);
}
math::matrix<float> BlurGaussian::getMask(int size, Mode)
{
math::matrix<float> mask(size, size);
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
if(size%2!=0) radius=size/2;
for(int i=-radius;i<=radius;i++)
{
for(int j=-radius;j<=radius;j++)
{
mask[i+radius][j+radius]=getGauss(i,j,sigma);
}
}
return mask;
}
float BlurGaussian::getGauss(int x, int y, float sigma)
{
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
return 0;
float gauss= exp(-(x*x+y*y)/(2*sigma*sigma))/(2*M_PI*sigma*sigma);
return gauss;
}

21
src/core/transformations/blur_linear.cpp
View File

@ -18,7 +18,24 @@ PNM* BlurLinear::transform()
math::matrix<float> mask(maskSize, maskSize);
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
int index = 0;
float sum = 0;
for (int x = 0; x < maskSize; x++) {
for (int y = 0; y < maskSize; y++) {
mask[x][y] = tmpMask.at(index).toDouble();
index++;
sum = sum + mask[x][y];
}
}
return convolute(mask, RepeatEdge);
if(normalize == true && sum != 0.0 ){
for (int x = 0; x < maskSize; x++) {
for (int y = 0; y < maskSize; y++) {
mask[x][y] = mask[x][y] / sum;
}
}
}
return convolute(mask, CyclicEdge);
}

10
src/core/transformations/blur_uniform.cpp
View File

@ -14,7 +14,15 @@ math::matrix<float> BlurUniform::getMask(int size, Mode)
{
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++)
{
mask[i][j]=1.00;
}
}
return mask;
}

115
src/core/transformations/convolution.cpp
View File

@ -22,20 +22,98 @@ 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 x=0; x<size; x++)
for (int y=0; y<size; y++)
{
mask[x][y] = 0;
}
int half=size/2;
mask[half][half]=1;
return mask;
}
/** Does the convolution process for all pixels using the given mask. */
PNM* Convolution::convolute(math::matrix<float> mask, Mode mode = RepeatEdge)
PNM* Convolution::convolute(math::matrix<float> mask, Mode mode = CyclicEdge)
{
int width = image->width(),
height = image->height();
int size=mask.rowno();
PNM* newImage = new PNM(width, height, image->format());
math::matrix<float> red_window(size, size);
math::matrix<float> blue_window(size, size);
math::matrix<float> gray_window(size, size);
math::matrix<float> green_window(size, size);
float mask_weight=sum(mask);
float red_sum;
float green_sum;
float blue_sum;
float gray_sum;
for (int x=0; x<width; x++)
for (int y=0; y<height; y++)
{
red_window=getWindow(x,y,size,RChannel,mode);
blue_window=getWindow(x,y,size,BChannel,mode);
green_window=getWindow(x,y,size,GChannel,mode);
//gray_window=getWindow(x,y,size,LChannel,mode);
red_window=join(red_window,mask);
blue_window=join(blue_window,mask);
green_window=join(green_window,mask);
//gray_window=join(gray_window,mask);
red_sum=sum(red_window);
green_sum=sum(green_window);
blue_sum=sum(blue_window);
//gray_sum=sum(gray_window);
if(mask_weight>0)
{
red_sum=red_sum/mask_weight;
blue_sum=blue_sum/mask_weight;
green_sum=green_sum/mask_weight;
//gray_sum=gray_sum/mask_weight;
}
if(red_sum>=0 && red_sum<=255 && green_sum>=0 && green_sum<=255 && blue_sum>=0 && blue_sum<=255)
{
newImage->setPixel(x,y, QColor(red_sum,green_sum,blue_sum).rgb());
}
else if (red_sum>=0 && red_sum<=255 && green_sum>=0 && green_sum<=255)
{
int old_blue = qBlue(newImage->pixel(x,y));
newImage->setPixel(x,y, QColor(red_sum,green_sum,old_blue).rgb());
}
else if (blue_sum>=0 && blue_sum<=255 && green_sum>=0 && green_sum<=255)
{
int old_red = qRed(newImage->pixel(x,y));
newImage->setPixel(x,y, QColor(old_red,green_sum,blue_sum).rgb());
}
else if (blue_sum>=0 && blue_sum<=255 && red_sum>=0 && red_sum<=255)
{
int old_green = qGreen(newImage->pixel(x,y));
newImage->setPixel(x,y, QColor(red_sum,old_green,blue_sum).rgb());
}
}
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
return newImage;
}
@ -48,7 +126,12 @@ const math::matrix<float> Convolution::join(math::matrix<float> A, math::matrix<
int size = A.rowno();
math::matrix<float> C(size, size);
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
for (int x=0; x<size; x++)
for (int y=0; y<size; y++)
{
C[x][y]=A[x][y]*B[x][y];
}
return C;
}
@ -58,7 +141,15 @@ const float Convolution::sum(const math::matrix<float> A)
{
float sum = 0.0;
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
int size=A.rowno();
for (int x=0; x<size; x++)
for (int y=0; y<size; y++)
{
sum=sum+A[x][y];
}
return sum;
@ -70,8 +161,20 @@ const math::matrix<float> Convolution::reflection(const math::matrix<float> A)
{
int size = A.rowno();
math::matrix<float> C(size, size);
int counter_i=0;
int counter_j=0;
for (int x=size-1; x>=0; x--)
{
for (int y=size-1; y>=0; y--)
{
C[x][y]=A[counter_i][counter_j];
counter_j++;
}
counter_i++;
}
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
return C;
}

74
src/core/transformations/transformation.cpp
View File

@ -99,34 +99,59 @@ QRgb Transformation::getPixel(int x, int y, Mode mode)
}
/** Returns a pixel using the Cyclic mode:
* pixel(x,y) = pixel(x%width, y%width);
*
*/
QRgb Transformation::getPixelCyclic(int x, int y)
{
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
int height=image->height();
int width=image->width();
/*
if(x>width) x=x%width;
if(y>height) y=y%height;
if(x<0) x=width-x;
if(y<0) y=height-y;
*/
x=(width+(x%width))%width;
y=(height+(y%height))%height;
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!";
int height=image->height();
int width=image->width();
return image->pixel(x,y);
QRgb pixel = image->pixel(x,y);
if(x>width || x<0 || y>height || y<0)
{
int v=PIXEL_VAL_MAX;
image->setPixel(x,y, QColor(v,v,v).rgb());
}
return pixel;
}
/**
* 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 height=image->height();
int width=image->width();
if(x>width) x=width;
if(y>height) y=height;
if(x<0) x=0;
if(y<0) y=0;
return image->pixel(x,y);
}
@ -136,9 +161,26 @@ math::matrix<float> Transformation::getWindow(int x, int y, int size,
Channel channel,
Mode mode = RepeatEdge)
{
math::matrix<float> window(size,size);
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
math::matrix<float> window(size,size);
int temp,r;
r=size/2;
for(int i=-r;i<=r;i++)
{
for(int j=-r;j<=r;j++)
{
if(channel==RChannel) temp = qRed(getPixel(x+i,y+j, CyclicEdge));
if(channel==GChannel) temp = qGreen (getPixel(x+i,y+j, CyclicEdge));
if(channel==BChannel) temp = qBlue(getPixel(x+i,y+j, CyclicEdge));
//if(channel==LChannel) temp= qGray(getPixel(i,j, mode));
window[i+r][j+r]=temp;
}
}
return window;
}