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Using the code below:
Mat img = Imgcodecs.imread(imageFilepath, Imgcodecs.CV_LOAD_IMAGE_GRAYSCALE); MatOfKeyPoint points = new MatOfKeyPoint(); FeatureDetector featureDetector = FeatureDetector.create(FeatureDetector.FAST); featureDetector.read("param.yaml"); featureDetector.write("test.yaml"); featureDetector.detect(img, points); System.out.println("Detected " + points.size() + " points in the image");
Contents of param.yaml:
%YAML:1.0 thresholdStep: 10000. minThreshold: 50. maxThreshold: 220. minRepeatability: 2 minDistBetweenBlobs: 10. filterByColor: 1 blobColor: 0 filterByArea: 1 minArea: 25. maxArea: 5000. filterByCircularity: 0 minCircularity: 8.0000001192092896e-001 maxCircularity: 3.4028234663852886e+038 filterByInertia: 1 minInertiaRatio: 1.0000000149011612e-001 maxInertiaRatio: 3.4028234663852886e+038 filterByConvexity: 1 minConvexity: 9.4999998807907104e-001 maxConvexity: 3.4028234663852886e+038
Contents of test.yaml seems to be blank even after the read.
%YAML:1.0 ---