//inherited from BaseFeature
void ImageFeature::load(const ::std::string& filename, bool forceGray){
//temporary pixel data
ColorGray grayPixel;
ColorRGB rgbPixel;
if(filename.find("gray") < filename.size()) {
forceGray=true;
}
//temporary image data
Image loaded;
// try {
loaded.read(filename);
// } catch( Exception &error_ ) {
// ERR << "Exception loading image: " << error_.what() << endl;
// return;
// }
xsize_=loaded.columns();
ysize_=loaded.rows();
if(loaded.colorSpace()==RGBColorspace && !forceGray) {
zsize_=3;
DBG(30) << "found image in RGB" << endl;
} else if ( loaded.colorSpace()==GRAYColorspace || forceGray) {
DBG(30) << "found image in gray" << endl;
zsize_=1;
} else {
ERR << "Unknown color space" << loaded.colorSpace() << endl;
}
data_.resize(zsize_);
for(uint c=0;c<zsize_;++c) data_[c].resize(xsize_*ysize_);
switch(zsize_) {
case 1: //gray image
DBG(30) << "Loading gray image" << endl;
for(uint y=0;y<ysize_;++y) {
for(uint x=0;x<xsize_;++x) {
rgbPixel=loaded.pixelColor(x,y);
data_[0][y*xsize_+x]=(rgbPixel.red()+rgbPixel.green()+rgbPixel.blue())/3;
}
}
break;
case 3: //rgb image
DBG(30) << "Loading rgb image" << endl;
for(uint y=0;y<ysize_;++y) {
for(uint x=0;x<xsize_;++x) {
rgbPixel=loaded.pixelColor(x,y);
data_[0][y*xsize_+x]=rgbPixel.red();
data_[1][y*xsize_+x]=rgbPixel.green();
data_[2][y*xsize_+x]=rgbPixel.blue();
}
}
break;
default:
ERR << "Unknown image format, depth=" << zsize_ << endl;
break;
}
}
double getColorDistance(ColorRGB color1, ColorRGB color2) {
cout << "getting color distance" << endl;
double distance = pow(color1.red()-color2.red(),2);
distance += pow(color1.blue()-color2.blue(),2);
distance += pow(color1.green()-color2.green(),2);
cout << "distance is " << distance << endl;
return distance;
}