I am trying to cut an image that I have uploaded into a java written program into quarters, specifically a pyramid. Every pyramid level will have a corresponding image, for example given an input image of abc.pgm, you will generate output images abc1.pgm for pyramid level 1, and abc2.pgm for pyramid level2. Each level should be in a quarter size from the previous level. But I really don't understand how to do this... any information would be greatly appreciated!
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