calculates the object probability density from the two histograms as:
dist_hist(I)=0, if hist1(I)==0;
dist_hist(I)=scale, if hist1(I)!=0 && hist2(I)>hist1(I);
dist_hist(I)=hist2(I)*scale/hist1(I), if hist1(I)!=0 && hist2(I)<=hist1(I)

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)