Compare image to actual screen

Question

I\'d like to make my Java program compare the actual screen with a picture (screenshot).

I don\'t know if it\'s possible, but I have seen it in Jitbit (a macro recor

Answer 1

You may try aShot: documentation link

1) aShot can ignore areas you mark with special color.

2) aShot can provide image which display difference between images.

private void compareTowImages(BufferedImage expectedImage, BufferedImage actualImage) {
    ImageDiffer imageDiffer = new ImageDiffer();
    ImageDiff diff = imageDiffer
            .withDiffMarkupPolicy(new PointsMarkupPolicy()
                    .withDiffColor(Color.YELLOW))
            .withIgnoredColor(Color.MAGENTA)
            .makeDiff(expectedImage, actualImage);

    // areImagesDifferent will be true if images are different, false - images the same
    boolean areImagesDifferent = diff.hasDiff();
    if (areImagesDifferent) {
        // code in case of failure 
    } else {
        // Code in case of success
    }
}

To save image with differences:

private void saveImage(BufferedImage image, String imageName) {
    // Path where you are going to save image
    String outputFilePath = String.format("target/%s.png", imageName);
    File outputFile = new File(outputFilePath);
    try {
        ImageIO.write(image, "png", outputFile);
    } catch (IOException e) {
        // Some code in case of failure
    }
}