Example usage for org.opencv.features2d ORB compute

Introduction

In this page you can find the example usage for org.opencv.features2d ORB compute.

Prototype

public void compute(Mat image, MatOfKeyPoint keypoints, Mat descriptors) 

Source Link

Usage

From source file:io.github.jakejmattson.facialrecognition.FacialRecognition.java

License:Open Source License

private static int compareFaces(Mat currentImage, String fileName) {
    Mat compareImage = Imgcodecs.imread(fileName);
    ORB orb = ORB.create();
    int similarity = 0;

    MatOfKeyPoint keypoints1 = new MatOfKeyPoint();
    MatOfKeyPoint keypoints2 = new MatOfKeyPoint();
    orb.detect(currentImage, keypoints1);
    orb.detect(compareImage, keypoints2);

    Mat descriptors1 = new Mat();
    Mat descriptors2 = new Mat();
    orb.compute(currentImage, keypoints1, descriptors1);
    orb.compute(compareImage, keypoints2, descriptors2);

    if (descriptors1.cols() == descriptors2.cols()) {
        MatOfDMatch matchMatrix = new MatOfDMatch();
        DescriptorMatcher matcher = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE_HAMMING);
        matcher.match(descriptors1, descriptors2, matchMatrix);
        DMatch[] matches = matchMatrix.toArray();

        for (DMatch match : matches)
            if (match.distance <= 50)
                similarity++;//from   w ww  . j av a  2  s.  c om
    }

    return similarity;
}

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