opencv3_java 图像的角点检测DetectConers goodFeaturesToTrack

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图像的角点检测DetectConers goodFeaturesToTrack

package opencv_java_demo;import org.opencv.core.*;import org.opencv.imgcodecs.*;import org.opencv.imgproc.*;public class DetectConers {public static void main(String[] args) {try{System.loadLibrary(Core.NATIVE_LIBRARY_NAME);final int maxCorners=50,blockSize=3;final double qualityLevel=0.01,minDistance=20.0,k=0.04;final boolean useHarrisDetector=false;MatOfPoint corners=new MatOfPoint();Mat src=Imgcodecs.imread("./images/lenna.jpg");if(src.empty()){throw new Exception("no file");}Mat dst=src.clone();Mat gray=new Mat();Imgproc.cvtColor(src, gray, Imgproc.COLOR_RGB2GRAY);Imgproc.goodFeaturesToTrack(gray, corners, maxCorners, qualityLevel, minDistance,new Mat(),blockSize,useHarrisDetector,k);Point[] pCorners=corners.toArray();for(int i=0;i<pCorners.length;i++){Imgproc.circle(dst, pCorners[i], 4, new Scalar(255,255,0),2);}Imgcodecs.imwrite("./images/corners.jpg", dst);}catch(Exception e){System.out.println("例外：" + e);}}}

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