Extract part of a image from a big image

Posted by rajat on Super User See other posts from Super User or by rajat
Published on 2012-09-07T21:00:16Z Indexed on 2012/09/07 21:40 UTC
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Windows

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linux

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image-editing

I have a 6 images , and each image has a certain section that i want to save as a separate image , the problem is that it has to be accurate because i am doing some animation using the sub-image so they should exactly . so I want to accurately extract a that part from each of the 6 images , i can't do it using a image editor in which i have to make the bounding box myself because it will not be accurate , is there any program that lets me do this by like defining a box using numerical values.

PS: I don't want to write matlab or opencv program for this .

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