Is there a way to automatically crop to within a couple of mm from the edge of an image. For instance my canvas is about 8" x 12". The background is a solid color but at the center of this canvas is a sharp image of a coin like a dime that is only 1" in diameter (like images "A" & "B"). Is there a way to take a bunch of similar images and have them all crop down so that I only have the actual dime left plus maybe a couple of mm between the edge of the coin and the edge of the canvas (like in image "C")? In other words the final image would be square, with the dime in the center and only 2mm of background all around? (like in image "C"). Currently I'm manually selecting the crop lines for each individual coin and then cropping it one coin at a time.