Resemble.js /Engine/Source/Developer/ScreenShotComparisonTools/Private/ImageComparer.cpp 2016-08-19T09:34:38.9363375-04:00 Compares Images Using segments of their code converted to C++ to do image analysis for automation. Code is obviously a complete rewrite, but still using them as a reference, so will look similar. https://github.com/Huddle/Resemble.js/blob/master/LICENSE Licensees Git P4 /Engine/Source/ThirdParty/Licenses/ResembleJs_License.txt