// Load the cube faces
void LoadCubeFace(GLenum target, char *filename)
{
FILE *file;
// load image and get pixels
STImage *image = new STImage(filename);
const STColor4ub* pixels = image->GetPixels();
// build mipmaps
gluBuild2DMipmaps(target, GL_RGBA,
image->GetWidth(), image->GetHeight(),
GL_RGBA, GL_UNSIGNED_BYTE, pixels);
}
STHDRImage* recover_hdr(vector<Photo>& photos, CameraResponse& response) {
int width,height;
STImage *tmpImage = new STImage(photos[0].filename);
width = tmpImage->GetWidth();
height = tmpImage->GetHeight();
delete tmpImage;
STHDRImage *newImage = new STHDRImage(width,height);
vector< vector<STColor3f> > Ls;
vector< vector<STColor3f> > ws;
vector< vector<STColor3f> > Lw;
for (int i=0;i<width;i++)
{
vector<STColor3f> row;
for (int j=0;j<height;j++)
{
STColor3f zero(0);
row.push_back(zero);
}
Ls.push_back(row);
ws.push_back(row);
Lw.push_back(row);
}
for (int k=0;k<photos.size();k++)
{
//open photo
STImage currentImage(photos[k].filename);
//perform calculations
for (int i=0;i<width;i++)
{
for (int j=0;j<height;j++)
{
STColor4ub currentPixel = currentImage.GetPixel(i, j);
Ls[i][j].r += (response.Weight(currentPixel).r * (response.GetExposure(currentPixel).r - logf(photos[k].shutter) ) );
Ls[i][j].g += (response.Weight(currentPixel).g * (response.GetExposure(currentPixel).g - logf(photos[k].shutter) ) );
Ls[i][j].b += (response.Weight(currentPixel).b * (response.GetExposure(currentPixel).b - logf(photos[k].shutter) ) );
ws[i][j] += response.Weight(currentPixel);
}
}
for (int i=0;i<width;i++)
{
for (int j=0;j<height;j++)
{
Lw[i][j].r = expf(Ls[i][j].r / ws[i][j].r);
Lw[i][j].g = expf(Ls[i][j].g / ws[i][j].g);
Lw[i][j].b = expf(Ls[i][j].b / ws[i][j].b);
newImage->SetPixel(i, j, Lw[i][j]);
}
}
}
return newImage;
}