Created
March 28, 2011 00:10
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void Image::changeBrighten(int value) | |
{ | |
// DOPISAĆ FUNKCJĘ która będzie przechowywać oryginalne parametry obrazka!! | |
QRgb pixel; | |
//na początek obsługa obrazków w skali szarości i mono (mniej niż 8 bitów) | |
if(QImage::Format_RGB32 > img->format()) | |
{ | |
QVector<QRgb> colorTab = img->colorTable(); | |
for(int i = 0; i < colorTab.count(); i++) | |
{ | |
pixel = colorTab.at(i); | |
pixel = qRgb(this->sum(qRed(pixel), 0, 255, value), this->sum(qGreen(pixel), 0, 255, value), this->sum(qBlue(pixel), 0, 255, value)); | |
img->setColorTable(colorTab); // this is spartaaa | |
} | |
}else{ | |
//tutaj można załatwić kolorowe obrazki | |
for(int i = 0; i < img->width(); i++) | |
{ | |
for(int j = 0; j < img->height(); j++) | |
{ | |
pixel = img->pixel(i, j); | |
img->setPixel(i, j, qRgb(this->sum(qRed(pixel), 0, 255, value), this->sum(qGreen(pixel), 0, 255, value), this->sum(qBlue(pixel), 0, 255, value))); | |
} | |
} | |
} | |
} | |
QRgb Image::sum(QRgb pix, int low, int high, int val) | |
{ | |
pix = pix + val; | |
//qDebug()<<"wypisz kazdy pixel: "<<pix<<endl; | |
if(pix > high) | |
{ | |
pix = 255; | |
} | |
return pix; | |
} | |
QRgb Image::distinct(QRgb pix, int low, int high, int val) | |
{ | |
int temp = pix; | |
//pix = pix - val; | |
temp -= val; | |
if(temp < low) | |
{ | |
temp = 0; | |
} | |
pix = temp; | |
return pix; | |
} | |
void Image::changeDarkness(int value) | |
{ | |
QRgb pixel; | |
//na początek obsługa obrazków w skali szarości i mono (mniej niż 8 bitów) | |
if(QImage::Format_RGB32 > img->format()) | |
{ | |
QVector<QRgb> colorTab = img->colorTable(); | |
for(int i = 0; i < colorTab.count(); i++) | |
{ | |
pixel = colorTab.at(i); | |
pixel = qRgb(this->distinct(qRed(pixel), 0, 255, value), this->distinct(qGreen(pixel), 0, 255, value), this->distinct(qBlue(pixel), 0, 255, value)); | |
img->setColorTable(colorTab); | |
} | |
}else{ | |
//tutaj można załatwić kolorowe obrazki | |
for(int i = 0; i < img->width(); i++) | |
{ | |
for(int j = 0; j < img->height(); j++) | |
{ | |
pixel = img->pixel(i, j); | |
img->setPixel(i, j, qRgb(this->distinct(qRed(pixel), 0, 255, value), this->distinct(qGreen(pixel), 0, 255, value), this->distinct(qBlue(pixel), 0, 255, value))); | |
} | |
} | |
} | |
} | |
void Image::negative() | |
{ | |
QRgb pixel; | |
if(QImage::Format_RGB32 > img->format()) | |
{ | |
QVector<QRgb> colorTab = img->colorTable(); | |
for(int i = 0; i < colorTab.count(); i++) | |
{ | |
pixel = colorTab.at(i); | |
pixel = qRgb(255 - qRed(pixel), 255 - qGreen(pixel), 255 - qBlue(pixel)); | |
colorTab.replace(i, pixel); | |
} | |
img->setColorTable(colorTab); | |
}else{ | |
for(int i = 0; i < img->width(); i++) | |
{ | |
for(int j = 0; j < img->height(); j++) | |
{ | |
pixel = img->pixel(i, j); | |
img->setPixel(i, j, qRgb(255 - qRed(pixel), 255 - qGreen(pixel), 255 - qBlue(pixel))); | |
} | |
} | |
} | |
} | |
// DO TEGO TRZEBA DOROBIĆ SUWAK | |
void Image::contrast(float a) | |
{ | |
QRgb pixel; | |
if(QImage::Format_RGB32 > img->format()) | |
{ | |
QVector<QRgb> colorTab = img->colorTable(); | |
for(int i = 0; i < colorTab.count(); i++) | |
{ | |
pixel = colorTab.at(i); | |
pixel = qRgb(this->calcContrast(qRed(pixel), a), this->calcContrast(qGreen(pixel), a), this->calcContrast(qBlue(pixel), a)); | |
colorTab.replace(i, pixel); | |
} | |
img->setColorTable(colorTab); | |
}else{ | |
for(int i = 0; i < img->width(); i++) | |
{ | |
for(int j = 0; j < img->height(); j++) | |
{ | |
pixel = img->pixel(i, j); | |
img->setPixel(i, j, qRgb(this->calcContrast(qRed(pixel), a), this->calcContrast(qGreen(pixel), a), this->calcContrast(qBlue(pixel), a))); | |
} | |
} | |
} | |
} | |
QRgb Image::calcContrast(QRgb pix, float a) | |
{ | |
int temp = pix; | |
if( (a * (temp - 127) + 127) > 255) | |
{ | |
temp = 255; | |
}else if( (a * (temp - 127) + 127) < 0){ | |
temp = 0; | |
}else{ | |
temp = a * (temp - 127) + 127; | |
} | |
pix = temp; | |
return pix; | |
} |
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