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zadanie_10

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This commit is contained in:
BohdanBakhlul 2021-06-19 06:28:31 +02:00
parent c61aff0e9a
commit 1028f64ba4
2 changed files with 69 additions and 13 deletions
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48
src/core/transformations/noise_bilateral.cpp
View File

@ -19,30 +19,58 @@ PNM* NoiseBilateral::transform()
sigma_d = getParameter("sigma_d").toInt();
sigma_r = getParameter("sigma_r").toInt();
radius = sigma_d;
radius = sigma_d * 2;
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
for (int x=0;x<width;++x) {
for (int y=0;y<height;++y) {
int r = calcVal(x,y, RChannel);
int g = calcVal(x,y, GChannel);
int b = calcVal(x,y, BChannel);
newImage->setPixel(x, y, QColor(r,g,b).rgb());
}
}
return newImage;
}
int NoiseBilateral::calcVal(int x, int y, Channel channel)
{
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
math::matrix<float> window = getWindow(x, y, radius, channel, RepeatEdge);
return 0;
int pixel = image->pixel(x,y);
switch (channel) {
case RChannel: pixel = qRed(pixel);
case GChannel: pixel = qGreen(pixel);
case BChannel: pixel = qBlue(pixel);
}
float sum1 = 0;
float sum2 = 0;
for (int i=0;i<radius;++i) {
for (int j=0;j<radius;++j) {
int pixelVal = window[i][j];
QPoint point1((i - radius/2) + x, (j - radius/2) + y);
QPoint point2(x,y);
sum1 += pixelVal * colorCloseness(pixelVal, pixel) * spatialCloseness(point1, point2);
sum2 += colorCloseness(pixelVal, pixel) * spatialCloseness(point1, point2);
}
}
return sum2 != 0 ? sum1 / sum2 : 0;
}
float NoiseBilateral::colorCloseness(int val1, int val2)
{
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
return 0;
return exp( -(pow(val1 - val2, 2) / (2 * pow(sigma_r, 2))));
}
float NoiseBilateral::spatialCloseness(QPoint point1, QPoint point2)
{
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
return 0;
return exp(
-(pow(point1.x() - point2.x(), 2) + pow(point1.y() - point2.y(), 2))
/
(2 * pow(sigma_d * 2, 2))
);
}

34
src/core/transformations/noise_median.cpp
View File

@ -17,7 +17,14 @@ PNM* NoiseMedian::transform()
PNM* newImage = new PNM(width, height, image->format());
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
for (int x=0;x<width;++x) {
for (int y=0;y<height;++y) {
int r = getMedian(x,y, RChannel);
int g = getMedian(x,y, GChannel);
int b = getMedian(x,y, BChannel);
newImage->setPixel(x, y, QColor(r,g,b).rgb());
}
}
return newImage;
}
@ -25,8 +32,29 @@ PNM* NoiseMedian::transform()
int NoiseMedian::getMedian(int x, int y, Channel channel)
{
int radius = getParameter("radius").toInt();
radius = radius * 2 + 1;
qDebug() << Q_FUNC_INFO << "Not implemented yet!";
math::matrix<float> window = getWindow(x, y, radius, channel, RepeatEdge);
int table_size = radius * radius;
int table[table_size];
return 0;
int table_index = 0;
for (int x=0;x<radius;++x) {
for (int y=0;y<radius;++y) {
table[table_index] = window[x][y];
table_index++;
}
}
std::sort(table, table + (table_size - 1));
int median;
if (table_size % 2 != 0)
median = table[ table_size / 2 ];
else
median = (table[ (table_size - 1) / 2 ] + table[ table_size / 2 ]) / 2.0;
return median;
}