How to get pixel values from a selected image window

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Tania
Tania 2014-11-26
编辑： Tania 2014-11-26
Hi everyone,
I am trying to get all the pixel values from a rectangle region

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Image Analyst
Image Analyst 2014-11-26
First of all, x is column, and y is row - not vice versa like you have it. So to get a 5-by-5block of pixels, a subimage, around an x,y location, you can use indexing:
subImage5x5 = fullImage(y-2:y+2, x-2:x+2);

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