Comment 24 for bug 702423

I tested using rsvg/convert/diff to compare the 'raw' (well, PPM) result before and after, but unfortunately there is always just a little noise in the data, like

-22102 22102 22102 62451 62451 62451 58082 58082 58082 57825 57825 57825
+22102 22102 22102 62451 62451 62451 58339 58339 58339 57825 57825 57825

I'm afraid we can't get 100% exact matches with scour, we'd need a kind of fuzzy comparison.