Histograms - 1 : Find, Plot, Analyze !!!
Learn the basics of histograms
Histograms - 2: Histogram Equalization
Learn to Equalize Histograms to get better contrast for images
Histograms - 3 : 2D Histograms
Learn to find and plot 2D Histograms
Histogram - 4 : Histogram Backprojection
Learn histogram backprojection to segment colored objects