How to extract a patch from image

2014 5 8
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更新时间：2014 5 8
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Hello,I have an image..after labeling the image.i want to extract a patch of 80*80 of each labeled object...what is the matlab code for extracting if i first find the center of each labeled object and then extract patch. This is the labled image of mine
[L,num] = bwlabel(ImageFilled);

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