Histogram computation from gradient image.

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Algorithms Analyst 2013-11-18

评论： Algorithms Analyst 2013-11-19

Hello everyone

I want to compute the histogram using image gradient.let say that I have an image

Img=imread(myimage);
[gx gy]=edge(Img,'sobel');
Mag=sqrt(gx,gy);
Dir=atan2(gy,gx);

now I want to compute the orientation bins using 12 orientations each covering 30degree.

how can I do it.After that I need to sum(Img,Dir) from 1 to number of bins 12.

Any help is appreciated.

Walter Roberson 2013-11-18

sqrt() cannot take two numeric inputs.

Algorithms Analyst 2013-11-19

I will correct it. The question is about histogram computatiom

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