How to know the original coordinates of cropped images

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feng
feng on 22 Nov 2011
a=imread ('a.jpg');
imshow(a)
[acrop,rect]=imcrop(a);
The question is why rect should be in decimal (rect=[98.5 88.5 87 70] in my case) if it is the coordinate vector?

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Accepted Answer

Walter Roberson
Walter Roberson on 22 Nov 2011
The coordinate system for image() (which is called by imshow()) is for the center of the pixels, so when you crop at a pixel boundary, the coordinate for that is going to be between two integers.

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