opencv3_java 圖形圖像的翻轉Flip flip

圖形圖像的翻轉Flip flip

package opencv_java_demo;

import org.opencv.core.*;
import org.opencv.imgcodecs.*;
import org.opencv.imgproc.*;

public class Flip {

	public static void main(String[] args) {
		try{
			System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
			
			Mat src=Imgcodecs.imread("./images/lenna.jpg");
			//讀取圖像到矩陣中
			if(src.empty()){
				throw new Exception("no file");
			}
			
			Mat dst = src.clone();
			//複制矩陣進入dst
			
			Core.flip(src,dst,0);
			//倒過來
			Imgcodecs.imwrite("./images/flip0.jpg", dst);
			
			Core.flip(src,dst,1);
			//翻轉
			Imgcodecs.imwrite("./images/flip1.jpg", dst);
			
			Core.flip(src,dst,-1);
			//倒過來加反轉
			Imgcodecs.imwrite("./images/flip2.jpg", dst);
		}catch(Exception e){
			System.out.println("例外：" + e);
		}

	}