OpenCv的数据结构与基本绘图

参考学习opencv3编程入门：学习了绘制几种图形的函数方法以及具体应用：具体看代码。

#include <opencv2/core/core.hpp>#include <opencv2\highgui\highgui.hpp>#include <opencv2\imgproc\imgproc.hpp>using namespace cv;#define WINDOW_NAME1 "【绘制图像1】"#define WINDOW_NAME2 "【绘制图像2】"#define WINDOW_WIDTH  600 //实现绘制不同角度、相同尺寸的椭圆void DrawEllipse(Mat img, double angle){int thickness = 2;int lineType = 8;ellipse(img,//将椭圆画在img上Point(WINDOW_WIDTH/2, WINDOW_WIDTH/2),//椭圆中心Size(WINDOW_WIDTH/4, WINDOW_WIDTH/16),//并且大小位于矩形内angle,//椭圆旋转角度为angle0, 360,//扩展弧度Scalar(255, 129, 0),//图形颜色thickness,//线宽lineType);//线型}//实现实心圆的绘制void DrawFilledCircle(Mat img, Point center){int thickness = -1;int lineType = 8;circle(img,//将实心圆画在img上center,//圆心由center定义WINDOW_WIDTH/32,//圆的半径Scalar(0, 0, 255),//圆的颜色thickness,//线宽定义为thickness = -1，绘制的是实心的。lineType//线型 8 为联通线型);}//实现凹多边形的绘制void DrawPolygon(Mat img){int lineType = 8;//创建一些点Point rookPoints[1][20];rookPoints[0][0] = Point(WINDOW_WIDTH/4, 7*WINDOW_WIDTH/8);rookPoints[0][1] = Point(3*WINDOW_WIDTH/4, 7*WINDOW_WIDTH/8);rookPoints[0][2] = Point(3*WINDOW_WIDTH/4, 13*WINDOW_WIDTH/16);rookPoints[0][3] = Point(11*WINDOW_WIDTH/16, 13*WINDOW_WIDTH/16);rookPoints[0][4] = Point(19*WINDOW_WIDTH/32, 3*WINDOW_WIDTH/8);rookPoints[0][5] = Point(3*WINDOW_WIDTH/4, 3*WINDOW_WIDTH/8);rookPoints[0][6] = Point(3*WINDOW_WIDTH/4, WINDOW_WIDTH/8);rookPoints[0][7] = Point(26*WINDOW_WIDTH/40,WINDOW_WIDTH/8);rookPoints[0][8] = Point(26*WINDOW_WIDTH/40,WINDOW_WIDTH/4);rookPoints[0][9] = Point(22*WINDOW_WIDTH/40,WINDOW_WIDTH/4);rookPoints[0][10] = Point(22*WINDOW_WIDTH/40,WINDOW_WIDTH/8);rookPoints[0][11] = Point(18*WINDOW_WIDTH/40,WINDOW_WIDTH/8);rookPoints[0][12] = Point(18*WINDOW_WIDTH/40,WINDOW_WIDTH/4);rookPoints[0][13] = Point(14*WINDOW_WIDTH/40,WINDOW_WIDTH/4);rookPoints[0][14] = Point(26*WINDOW_WIDTH/40,WINDOW_WIDTH/8);rookPoints[0][15] = Point(WINDOW_WIDTH/4,WINDOW_WIDTH/8);rookPoints[0][16] = Point(WINDOW_WIDTH/4,3*WINDOW_WIDTH/8);rookPoints[0][17] = Point(13*WINDOW_WIDTH/32,3*WINDOW_WIDTH/8);rookPoints[0][18] = Point(5*WINDOW_WIDTH/16,13*WINDOW_WIDTH/16);rookPoints[0][19] = Point(WINDOW_WIDTH/4,13*WINDOW_WIDTH/16);const Point * ppt[1] = {rookPoints[0]};int npt[] = {20};fillPoly(img,//将多边形画到图像img上ppt,//多边形的顶点集为pptnpt,//要绘制的顶点数目1,//要绘制多边形的数量Scalar(255,255,255),//多边形颜色定义lineType);}//实现线的绘制函数void DrawLine(Mat img, Point start, Point end){int thickness = 2;int lineType = 8;line(img,start,end,Scalar(0, 0, 0),//代表黑色thickness,lineType);}int main(){//创建空白的Mat图像Mat atomImage = Mat::zeros(WINDOW_WIDTH, WINDOW_WIDTH, CV_8UC3);Mat rookImage = Mat::zeros(WINDOW_WIDTH, WINDOW_WIDTH, CV_8UC3);//绘制椭圆DrawEllipse(atomImage, 90);DrawEllipse(atomImage, 0);DrawEllipse(atomImage, 45);DrawEllipse(atomImage, -45);//绘制圆心DrawFilledCircle(atomImage, Point(WINDOW_WIDTH/2, WINDOW_WIDTH/2));//绘制椭圆DrawPolygon(rookImage);//绘制矩形rectangle(rookImage, Point(0, 7*WINDOW_WIDTH/8), Point(WINDOW_WIDTH, WINDOW_WIDTH), Scalar(0, 255, 255), -1, 8);//绘制一些线段DrawLine(rookImage, Point(0, 15*WINDOW_WIDTH/16),Point(0, 15*WINDOW_WIDTH/16) );imshow(WINDOW_NAME1, atomImage);moveWindow(WINDOW_NAME1, 0, 200);imwrite("yuanzi.jpg",atomImage);imshow(WINDOW_NAME2, rookImage);moveWindow(WINDOW_NAME2, WINDOW_WIDTH, 200);imwrite("gege.jpg", rookImage);waitKey(0);return 0;}