HumbleSoftware/js-imagediff — pull request #23 by cburgmer (2013-12-20 21:18:10+00:00)
Title: Allow top alignment when diffing unequal images

When calculating the diff of two unequally sized images I want to hold the top left corners together.

This adds an option `align: 'top'` as third parameter to the `diff` function.

I am open to better naming/API for the alignment.