Cut out 4 Pictures from a scanned image

Cuts out 4 standard pictures from a scanned image.

The use case is that you use your scanner to scan in standard photos 4 at a time, you would like to split this scanned image and save it as 4 separate files to continue work with the image processing software on. But rather than to open each image and select every single picture in the image scan this batch script is cutting out 4 photos for you.
The 4 pictures will have the same filename as the original file and added a suffix of _1, _2, _3 and _4