std::string toHtml(const RGB &rgb) {
char buf[32];
// Microsoft doesn't define round(double) in <cmath>
unsigned r = boost::numeric::converter<unsigned, double>::convert(clip(rgb.r())*255);
unsigned g = boost::numeric::converter<unsigned, double>::convert(clip(rgb.g())*255);
unsigned b = boost::numeric::converter<unsigned, double>::convert(clip(rgb.b())*255);
sprintf(buf, "#%02x%02x%02x", r, g, b);
return buf;
}
void Image::gammaCorrect(float dGamma)
{
RGB rgbTemp;
float fPower = 1.0 / dGamma;
for(int x = 0; x < m_nWidth; x++) {
for(int y = 0; y < m_nHeight; y++) {
rgbTemp.set(m_rgbImage[x][y]);
rgbTemp.clamp(0.0, 1.0);
m_rgbImage[x][y].R = pow(rgbTemp.r(), fPower);
m_rgbImage[x][y].G = pow(rgbTemp.g(), fPower);
m_rgbImage[x][y].B = pow(rgbTemp.b(), fPower);
}
}
}
