double Hsl::calcLum(double red, double green, double blue)
{
double r,g,b;
double min, max;
double lum;
r = red/255;
g = green/255;
b = blue/255;
min = minRGB(r,g,b);
max = maxRGB(r,g,b);
lum = (max+min)/2;
return lum;
}
//converts rgb values to Hsl values
vector<double> Hsl::rgb2hsl(double red, double green, double blue)
{
double r,g,b;
double min, max;
double delta;
vector<double> HSL(3,0);
r = red/255;
g = green/255;
b = blue/255;
min = minRGB(r,g,b);
max = maxRGB(r,g,b);
L = (max+min)/2;
delta = max-min;
if(delta==0)
{
H=0; S=0;
}
else
{
if(L>0.5)
{
S = (max-min)/(2.0-max-min);
}
else
{
S = (max-min)/(max+min);
}
if(max==r)
{
H = ((g-b)/delta);
}
else if(max==g)
{
H = ((b-r)/delta) + 2;
}
else
{
H = ((r-g)/delta) + 4;
}
H *= 60;
if(H<0) H+=360;
}
HSL[0] = round(H); HSL[1] = S; HSL[2] = L;
return HSL;
}
void ImageProcessor::grayscaleMax(cv::Mat &img)
{
unsigned char *data = (unsigned char*) (img.data);
int r,g,b,gray;
for(int y=0; y<img.rows; y++)
{
for(int x=0; x<img.cols; x++)
{
b = data[y*img.step + x*img.channels()];
g = data[y*img.step + x*img.channels() + 1];
r = data[y*img.step + x*img.channels() + 2];
gray = maxRGB(r, g ,b);
data[y*img.step + x*img.channels()] = gray;
data[y*img.step + x*img.channels() + 1] = gray;
data[y*img.step + x*img.channels() + 2] = gray;
}
}
}