I am trying to perform a histogram equalization using OpenCV using the following function
Mat Histogram::Equalization(const Mat& inputImage)
{
if(inputImage.channels() >= 3)
{
vector<Mat> channels;
split(inputImage,channels);
Mat B,G,R;
equalizeHist( channels[0], B );
equalizeHist( channels[1], G );
equalizeHist( channels[2], R );
vector<Mat> combined;
combined.push_back(B);
combined.push_back(G);
combined.push_back(R);
Mat result;
merge(combined,result);
return result;
}
return Mat();
}
But when I get the result, there seems to be no difference in input and output image, what am I doing wrong?
Sorry for the bad image quality, "Preprocessed" (left) is histogram equalized, you can see its same as the input (right).
What did miss?