How to build gradient magnitude-orientation histogram?

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Ganesh 2012-1-13

We are trying to extract shape features.

Walter Roberson 2012-1-13

Perhaps Bala has some ideas; http://www.mathworks.com/matlabcentral/answers/25768-building-types-of-histograms

Ganesh 2012-1-19

could u give me some hints about how to create the spatial correlogram of an image? Has anyone used it for image and got it successfully?

MATLAB Graphics 2-D and 3-D Plots Data Distribution Plots Histograms

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