opencv学习笔记（一） 使用opencv进行拍照

原理很简单，首先打开摄像头，new一个Mat容器来储存拍摄的照片，调用函数Imgcodecs.imwrite就可以将图像保存到对应位置，实现拍照的效果了。具体代码如下：

import org.opencv.core.*;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.videoio.VideoCapture;     
        
public class TakePhotos {
	static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME); }
    public static void main (String args[]){
    	VideoCapture camera = new VideoCapture();
    	camera.open(0);
    	if(!camera.isOpened()){
    		System.out.println("Error");
    	}
    	else {
    		Mat frame = new Mat();
    	    		try {
	    	    		System.out.println("准备拍照");
	    	    		camera.read(frame);
	    	    		Imgcodecs.imwrite("路径//cameraTakeApicture.jpg", frame);
	    	    		System.out.println("拍照成功");
					} catch (Exception e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
    	}
    	camera.release();
    }
}