I have a centroid(x,y) of object in image..How to extract patch from image around centroid

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Hi, There are objects( nucleus) in an image.i have the centre(x,y) values of objects ...I want to extract patches from image around the center...The patch center will be the center(x,y) of object. Please help.

Answers (1)

Image Analyst
Image Analyst on 11 Mar 2015
subImage = grayImage(row1:row2, column1:column2);
or you can use imcrop().
  4 Comments
Image Analyst
Image Analyst on 13 Mar 2015
Then use simple math
row1 = int32(y - 40);
row2 = row1 + 79;
column1 = int32(x - 40);
column2 = column1 + 79;
subImage = rgbImage(row1:row2, column1:column2, :);

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