pixel-compare

pixel-compare

compare pixel of image for PNG, JPEG or DataURL.

example

const pixelCompare = require("pixel-compare");
pixelCompare({
    basedImage: "./test/test-images/dragon1.png",
    testImage: "./test/test-images/dragon2.png",
    outputImage: "./test/output-images/result.png"
})
.then(isSame => {
	//if two images are the same
});

If you want to compare multiple images to same based images, you can do this.

const pixelCompare = require("pixel-compare");
pixelCompare({
	basedImage: "./test/test-images/dragon1.png"
})
.then(basedImageCompareable => {
	basedImageCompareable({
		testImage: "./test/test-images/dragon2.png",
		outputImage: "./test/output-images/result1.png"
	});

	basedImageCompareable({
		testImage: "./test/test-images/dragon3.png",
		outputImage: "./test/output-images/result2.png"
	});
});

Base Image	Test Image	Result Image

install

npm insatll --save pixel-compare

api

pixelCompare({ basedImage, testImage, [outputImage], [baseColor], [testColor] })

• basedImage: based image path or data url

• testImage: test image path or data url

• outputImage: is optional, output image path

• baseColor: is optional, array of 4 for base color when test color is all 0

• testColor: is optional, array of 4 for test color when base color is all 0

return a promise with a boolean to indicate if two images are the same.