obtaining magnitude of histogram plot

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divya r
divya r 2012-7-25
I have plot the histogram of an image using imhist() function. I want to obtain the magnitude of the histogram plot. imhist() returns 2 arguments : counts and x.
img=imread('C:\Users\Divya\Desktop\1_2_1.bmp');
img1=rgb2gray(img);
[counts x]=imhist(img1,20000);
counts and x both are 20000*1 array. It does not provide information about the whole image
Any pointers on how i can obtain this data?

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