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how to save multiple smaller files from one big file


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Say I have a 256x256 image and I want to extract 16 64x64 images from this image and save them as 16 different files. Copying and pasting into a new file gets quite tedious after a while especially for larger images. Is there any good way to automate this task? Maybe a batch script or a quick plugin? I'm familiar with programming and understand the basic codelab script however I'm having trouble from there. What function do I use in order to save a new file? From there I guess I just put it in a for() loop and make it run 16 times. Any ideas?

Edited by choochoo
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