Opencv学习:学习画图形
日常坑爹opencv
1、绘制线段
1 2 3 4 5 6 | Mat picture(500,500,CV_8UC3,Scalar(0,0,0,0.5)); Point point1 = Point(100, 100); Point point2 = Point(400, 400); line(picture, point1, point2, Scalar(0, 255, 0), 2); imshow( "sbn" , picture); waitKey(0); |
显示结果如下
Mat picture(500,500,CV_8UC3,Scalar(0,0,0,0.5)); Point point1 = Point(100, 100); Point point2 = Point(400, 400); Point point3 = Point(100, 200); Point point4 = Point(400, 200); line(picture, point1, point2, Scalar(0, 255, 0), 2); line(picture, point3, point4, Scalar(0, 255, 255), 2); imshow("sbn", picture); waitKey(0);
2、绘制三角形
Mat picture(500,500,CV_8UC3,Scalar(0,0,0,0.5)); Point point1 = Point(200, 150); Point point2 = Point(50, 250); Point point3 = Point(400, 380); Point point4 = Point(200, 150); line(picture, point1, point2, Scalar(24, 224, 139), 2); line(picture, point2, point3, Scalar(24, 224, 139), 2); line(picture, point3, point1, Scalar(24, 224, 139), 2); imshow("sbn", picture); waitKey(0);
3、绘制圆形
Mat picture(500,500,CV_8UC3,Scalar(0,0,0,0.5)); Point point1 = Point(200, 150); circle(picture, point1, 50, Scalar(255, 255, 255, 255), 2); imshow("sbn", picture); waitKey(0);
4、绘制椭圆
Mat picture(500,500,CV_8UC3,Scalar(0,0,0,0.5)); Point point1 = Point(200, 150); ellipse(picture,Point(256,256),Size(150, 100),0,0, 360,Scalar(255, 129, 0),2,-1); imshow("sbn", picture); waitKey(0);
5.绘制矩形
Mat picture(500,500,CV_8UC3,Scalar(0,0,0,0.5)); rectangle(picture, Point(50, 100), Point(200, 300), Scalar(0, 255, 255), -1); imshow("sbn", picture); waitKey(0);
5、加入文字
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