Slice images from the CLI.
npx sliceanddice
--file=X
the image to split--cols=X
the number of columns the image has--rows=X
the number of rows the image has--skipStart=X
the number of images to skip at the beginning--skipEnd=X
the number of images to skip at the end--outPrefix=X
the prefix for all images (will not prefix files if none specified)--outFolder=X
the folder to dump all the images into (defaults to the filename passed in)