How to get CO-HOG features from an image in matlab

How to get CO-HOG features from an image in matlab, and in case that no implementation for it in Matlab could any one tell me how to start to implement it

Answer 1

[Image Analyst]

Here is a demo of HOG (histogram of gradients) from the Computer Vision System Toolbox. http://www.mathworks.com/help/vision/examples/digit-classification-using-hog-features.html?prodcode=VP&language=en

[Mehad]

thanks on your answer , but I need CO-HOG not HOG co occurrence of HOG is enhancement for HOG technique , I need to know if CO-HOG is implemented before if no , how HOG is implemented in matlab to adjust its code

[Image Analyst]

I don't know the details of the built-in hog function. You might have to start writing it yourself if it can't do it.