How to improve homography

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How can I take top matches using AKAZE?

When you match key points , you get result as MatOfDMatch. Convert that to List<dmatch> , then sort the list based on the distance , in ascending order . So now you can take 10 DMatch objects from list from i 0 to 10

DescriptorMatcher matcher = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE_HAMMING); MatOfDMatch matches = new MatOfDMatch(); matcher.match( descriptorsUser, descriptorsTemplate, matches ); List<dmatch> listMatches = matches.toList();

    Collections.sort(listMatches, new Comparator<DMatch>(){

        @Override
        public int compare(DMatch arg0, DMatch arg1) {
            if(arg0.distance<arg1.distance)
            return -1;
            else if(arg0.distance>arg1.distance)
            return 1;
            else
                return 0;
        }});

List<dmatch> goodMatches = listMatches.subList(0, 10);

Sorry man but it doesn't work :S