HSV cumulative Histogram

 Hi,

i divided an RGB image into 6 equal blocks , converted each block to HSV and in each block i combined the H,S and V in one vector called "C= 9*Hue + 3*Saturation + value"

each vector (for each block)is consisted of 72 values(as i quantized the hue in 8, Saturation in 3 and value in 3 also)

Now i want to construct an HSV cumulative histogram for each block

Would you help me please with steps and matlab code if available?

Thank you

[Walter Roberson]

There used to be a long series of postings on this topic... ah, they were in the newsreader.

See the postings for Jeevashini such as at

http://www.mathworks.com/matlabcentral/newsreader/view_thread/285992

and see the postings for shilpa khinvasara such as at

http://www.mathworks.com/matlabcentral/newsreader/view_thread/285992

Answer 1

[Image Analyst]

I don't know what that is. What are you accumulating? Would cumsum() help you?

[yasmine]

http://www.ijcaonline.org/volume15/number7/pxc3872619.pdf

i want to execute the steps of the algorithm in this paper

[Walter Roberson]

That paper talks about taking a histogram, not a "cumulative histogram". We do not know what a "cumulative histogram" is. If you want to create a histogram, use histc() or hist()