Command imgdiff
is a command-line image diff tool.
$ imgdiff --help
imgdiff, a image diff tool
Usage:
imgdiff [flags] <image1> <image2> [image3, ..., imageN]
Flags:
--diff-color color diff color (default rgba(255,0,0,0))
-h, --help help for imgdiff
-v, --version version for imgdiff