http://blog.csdn.net/qq_23880193/article/details/49257637
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- #include<iostream>
- #include<vector>
- #include<opencv2/opencv.hpp>
-
- using namespace cv;
- using namespace std;
-
- int main()
- {
- Mat srcImage(Size(600, 600), CV_8UC3, Scalar(0));
-
- RNG &rng = theRNG();
-
- char key;
- while (1)
- {
- //隨機生成一些點
- //首先就是隨機生成點的總數(shù)量
- int g_nPointCount = rng.uniform(3, 30);
- //接下來就是隨機生成一些點的坐標
- vector<Point> points;
- for (int i = 0; i < g_nPointCount; i++)
- {
- Point midPoint;
-
- midPoint.x = rng.uniform(srcImage.cols / 4, srcImage.cols * 3 / 4);
- midPoint.y = rng.uniform(srcImage.rows / 4, srcImage.rows * 3 / 4);
-
- points.push_back(midPoint);
- }
-
- //顯示剛剛隨機生成的那些點
- for (int i = 0; i < g_nPointCount; i++)
- {
- circle(srcImage, points[i], 0, Scalar(rng.uniform(0, 255), rng.uniform(0, 255), rng.uniform(0, 255)), 3);
- }
-
- //在生成的那些隨機點中尋找最小包圍圓形
- Point2f center;
- float radius;
- minEnclosingCircle(points, center, radius);
-
- //根據(jù)得到的圓形和半徑 繪制圓形
- circle(srcImage, static_cast<Point>(center), (int)radius
- , Scalar(rng.uniform(0, 255), rng.uniform(0, 255), rng.uniform(0, 255)), 3);
-
- imshow("【繪制結(jié)束后的圖像】", srcImage);
-
- key = waitKey();
- if (key == 27)
- break;
- else
- srcImage = Scalar::all(0);
- }
-
- return 0;
- }
