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pxdoppelganger
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pxdoppelganger
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# pXdoppelganger ## what can it do for me? * pXdoppelganger can compare two images for you. * pXdoppelganger converts the images into bitstreams and thus analyze every pixcel. * pXdoppelganger can tell you if those images are equal and what the percentual change is. * pXdoppelganger can also show you the "difference" image between the two images. ## what are the restrictions? * pXdoppelganger will only work with PNG files. ## how do I use it? install the gem: ``` gem install pxdoppelganger ``` and use it: ``` require 'pxdoppelganger' ``` provide paths to images: ``` images = PXDoppelganger::Images.new('~/Downloads/Image1.png', '~/Downloads/Image2.png') ``` see if images are equal: ``` images.equal? => true/false ``` get the difference of the two images (in percent): ``` images.difference => 1.3849177058385036 ``` save the difference-image: ``` images.save_difference_image('~Documents/analysis/diff_image.png') ``` ## how do I contribute? open pull request ## license MIT: http://opensource.org/licenses/MIT
