opencv3_java 图像的边缘检测Canny Canny

图像的边缘检测Canny Canny

package opencv_java_demo;import org.opencv.core.*;import org.opencv.imgcodecs.*;import org.opencv.imgproc.Imgproc;public class Canny {public static void main(String[] args) {try{System.loadLibrary(Core.NATIVE_LIBRARY_NAME);Mat src=Imgcodecs.imread("./images/lenna.jpg",Imgcodecs.CV_LOAD_IMAGE_GRAYSCALE);//读取图像到矩阵中if(src.empty()){throw new Exception("no file");}Mat dst = src.clone();//复制矩阵进入dstImgproc.Canny(src,dst,40.0,200.0);Imgcodecs.imwrite("./images/Canny.jpg", dst);}catch(Exception e){System.out.println("例外：" + e);}}}