ImageComparator

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Compare image pixel values with a threshold using phantomjs.

Getting Started

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Import the library:

phantom.page.injectJs( 'ImageComparator.js');

Creat a instance of ImageComparator:

var imageComparator = new ImageComparator();

Call function compare and pass two image to be compared a threshold and a callback function as argument.

imageComparator.compare('file:///..fullpath../image1.png', 'file:///..fullpath../image2.png', 0.001, function(result) {
        console.log(result);
        phantom.exit();
    });

result are 0 if the difference is less than the threshold and 1 if the difference is greater than the threshold.