java opencv 基本操作1

 java opecv 基本操作，创建图片，逻辑操作，通道分离

	
    	// 创建方法 - 克隆
    	Mat m1 = src.clone();

    	// 复制
    	Mat m2 = new Mat();
    	src.copyTo(m2);

    	// 赋值法
    	Mat m3 = src;

    	// 创建空白图像
    	Mat m4 = Mat.zeros(src.size(), src.type());
    	Mat m5 = Mat.zeros(new Size(512, 512), CvType.CV_8UC3);
    	Mat m6 = Mat.ones(new Size(512, 512), CvType.CV_8UC3);
    	
    	//创建白色背景图片
    	Mat m7 = new Mat(512, 512, CvType.CV_8UC3, new Scalar(255, 255, 255));
    	
    	//create image one
    	Mat src1 = Mat.zeros(new Size(400, 400), CvType.CV_8UC3);
    	//绘制红色矩形
    	Imgproc.rectangle(src1, new Point(100, 100),  new Point(200, 200), new Scalar(0, 0, 255), -1);
    	
    	// create image two
    	Mat src2 = Mat.zeros(new Size(400, 400), CvType.CV_8UC3);
    	//绘制红色矩形
    	Imgproc.rectangle(src2, new Point(150, 150),  new Point(250, 250), new Scalar(0, 0, 255), -1);

    	// 逻辑操作
    	Mat dst1 = new Mat(), dst2 = new Mat(), dst3 = new Mat();
    	Core.bitwise_and(src1, src2, dst1);             
    	Core.bitwise_xor(src1, src2, dst2);             
    	Core.bitwise_or(src1, src2, dst3);
    	
    	
        //通道分离
    	List mv = new ArrayList();
    	Mat sdst1 = new Mat(), sdst2 = new Mat(), sdst3 = new Mat();
    	// 蓝色通道为零
    	Core.split(src, mv);
    	mv.get(0).setTo(new Scalar(0));
    	Core.merge(mv, sdst1);
    	

    	// 绿色通道为零
    	Core.split(src, mv);
    	mv.get(1).setTo(new Scalar(0));
    	Core.merge(mv, sdst2);

    	// 红色通道为零
    	Core.split(src, mv);
    	mv.get(2).setTo(new Scalar(0));
    	Core.merge(mv, sdst3);

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