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Zadanie 9

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This commit is contained in:
Sebastian Spaloniak 2020-05-12 00:08:37 +02:00
parent e03241451e
commit b78ce3902b
4 changed files with 124 additions and 24 deletions
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52
lpo-projekt-v2/src/core/transformations/edge_sobel.cpp
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@ -14,14 +14,49 @@ EdgeSobel::EdgeSobel(PNM* img) :
void EdgeSobel::prepareMatrices()
{
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
math::matrix<float> gx(3, 3);
math::matrix<float> gy(3, 3);
g_x = gx;
g_y = gy;
g_x(0, 0) = -1;
g_x(0, 1) = 0;
g_x(0, 2) = 1;
g_x(1, 0) = -2;
g_x(1, 1) = 0;
g_x(1, 2) = 2;
g_x(2, 0) = -1;
g_x(2, 1) = 0;
g_x(2, 2) = 1;
g_y(0, 0) = -1;
g_y(0, 1) = -2;
g_y(0, 2) = -1;
g_y(1, 0) = 0;
g_y(1, 1) = 0;
g_y(1, 2) = 0;
g_y(2, 0) = 1;
g_y(2, 1) = 2;
g_y(2, 2) = 1;
}
math::matrix<float>* EdgeSobel::rawHorizontalDetection()
{
math::matrix<float>* x_gradient = new math::matrix<float>(this->image->width(), this->image->height());
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
int width = x_gradient->rowno(),
height = x_gradient->colno();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
math::matrix<float> window = getWindow(x, y, 3, LChannel, NullEdge);
(*x_gradient)(x, y) = Convolution::sum(Convolution::join(g_x, window));
}
}
return x_gradient;
}
@ -30,7 +65,18 @@ math::matrix<float>* EdgeSobel::rawVerticalDetection()
{
math::matrix<float>* y_gradient = new math::matrix<float>(this->image->width(), this->image->height());
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
int width = y_gradient->rowno(),
height = y_gradient->colno();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
math::matrix<float> window = getWindow(x, y, 3, LChannel, NullEdge);
(*y_gradient)(x, y) = Convolution::sum(Convolution::join(g_y, window));
}
}
return y_gradient;
}

5
lpo-projekt-v2/src/core/transformations/map_height.cpp
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@ -1,4 +1,5 @@
#include "map_height.h"
#include "conversion_grayscale.h"
MapHeight::MapHeight(PNM* img) :
Transformation(img)
@ -15,9 +16,9 @@ PNM* MapHeight::transform()
int width = image->width(),
height = image->height();
PNM* newImage = new PNM(width, height, QImage::Format_Grayscale8);
PNM* newImage = new PNM(width, height, QImage::Format_Indexed8);
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
newImage = ConversionGrayscale(image).transform();
return newImage;
}

28
lpo-projekt-v2/src/core/transformations/map_horizon.cpp
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@ -33,9 +33,31 @@ PNM* MapHorizon::transform()
dy = -1;
}
PNM* newImage = new PNM(width, height, QImage::Format_Grayscale8);
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
PNM* newImage = new PNM(width, height, QImage::Format_Indexed8);
PNM* mapHeight = MapHeight(image).transform();
for (int x = 0; x<width; x++){
for (int y = 0; y<height; y++){
float alfa = 0.0;
int ch = qRed(mapHeight->pixel(x, y));
for (int n = x + dx, m = y + dy; n < width && m < height && n >= 0 && m >= 0; n += dx, m += dy){
int rh = qRed(mapHeight->pixel(n, m));
if (ch < rh){
float dis = sqrt(pow(n - x, 2) + pow(m - y, 2)) * scale;
float ra = atan((rh - ch) / dis) * 180. / 3.14;
if (ra > alfa){
alfa = ra;
}
}
}
float delta = alfa - sun_alpha;
if (delta <= 0){
newImage->setPixel(x, y, 255);
}
else{
newImage->setPixel(x, y, cos(delta * 3.14 / 180.) * 255);
}
}
}
return newImage;
}

33
lpo-projekt-v2/src/core/transformations/map_normal.cpp
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@ -22,7 +22,38 @@ PNM* MapNormal::transform()
PNM* newImage = new PNM(width, height, image->format());
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
PNM* tempImage = MapHeight(image).transform();
EdgeSobel sobel(tempImage);
math::matrix<float>* gx = sobel.rawHorizontalDetection();
math::matrix<float>* gy = sobel.rawVerticalDetection();
newImage = new PNM(width, height, QImage::Format_RGB32);
float dzStart = (float)(1.0 / strength);
float dx, dy, dz, len;
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
dx = (*gx)(x, y) / 255.0;
dy = (*gy)(x, y) / 255.0;
dz = dzStart;
len = sqrt(pow(dx, 2.0) + pow(dy, 2.0) + pow(dz, 2.0));
dx /= len;
dy /= len;
dz /= len;
dx = (dx + 1.0) * (255.0 / 2.0);
dy = (dy + 1.0) * (255.0 / 2.0);
dz = (dz + 1.0) * (255.0 / 2.0);
newImage->setPixel(x, y, qRgb(dx, dy, dz));
}
}
return newImage;
}