How to normalize a multidimensional histogram

Question

I need to calculate the normalized colour histigram (in HSV colourspace) of an image. Using histcn in Matlab with 8 bins for Hue and 4 bins for each of Saturation and Value I get a 8x4x4 histogram. How could I normalize it?

Answer 1

Yes, @ASantosRibeiro is right, you just need to divide by number of elements like

HSV_hist ./ length(InitialData);

or

HSV_hist ./ sum(HSV_hist(:)); % To count the number of element use to create your hist.