Using Imagemagick to easily split an image file

convert command of ImageMagick is very useful to split an images file.

To use the convert, you'll need to install ImageMagick beforehand.

brew install imagemagick

Split the image to the left and right

input.png

convert -crop 50%x100% input.png output.png

output-0.png

output-1.png

Split the image to the top and bottom

input.png

convert -crop 100%x50% input.png output.png

output-0.png

output-1.png

Split the image into 4 parts

input.png

convert -crop 50%x50% input.png output.png

output-0.png

output-1.png

output-2.png

output-3.png