how to find the histogram of the each blocks of the gray image that is divided into 4 parts?
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Image Analyst on 12 Jan 2015
[pixelCounts1, grayLevels1] = imhist(block1);
[pixelCounts2, grayLevels2] = imhist(block2);
[pixelCounts3, grayLevels3] = imhist(block3);
[pixelCounts4, grayLevels4] = imhist(block4);