HumbleSoftware/js-imagediff — pull request #21 by cburgmer (2013-11-20 15:00:18+00:00)
Title: Provide exit codes to parent process

Similar to the regular `diff` command this change enables imagediff to return an exit status of 0 if the images are similar and 1 if the images are not.

This would make shell scripting around imagediff a lot easier.