converted some OpenCV C samples to C++

2010-11-27 23:15:16 +00:00
parent f40e51588b
commit ee3618243d
69 changed files with 22799 additions and 1788 deletions
--- a/samples/cpp/minarea.cpp
+++ b/samples/cpp/minarea.cpp
@@ -0,0 +1,47 @@
+#include "opencv2/highgui/highgui.hpp"
+#include "opencv2/imgproc/imgproc.hpp"
+
+using namespace cv;
+
+int main( int argc, char** argv )
+{
+    Mat img(500, 500, CV_8UC3);
+    RNG& rng = theRNG();
+
+    for(;;)
+    {
+        int i, count = rng.uniform(1, 101);
+        vector<Point> points;
+        for( i = 0; i < count; i++ )
+        {
+            Point pt;
+            pt.x = rng.uniform(img.cols/4, img.cols*3/4);
+            pt.y = rng.uniform(img.rows/4, img.rows*3/4);
+            
+            points.push_back(pt);
+        }
+        
+        RotatedRect box = minAreaRect(Mat(points));
+        Point2f center, vtx[4];
+        float radius = 0;
+        minEnclosingCircle(Mat(points), center, radius);
+        box.points(vtx);
+        
+        img = Scalar::all(0);
+        for( i = 0; i < count; i++ )
+            circle( img, points[i], 3, Scalar(0, 0, 255), CV_FILLED, CV_AA );
+
+        for( i = 0; i < 4; i++ )
+            line(img, vtx[i], vtx[(i+1)%4], Scalar(0, 255, 0), 1, CV_AA);
+        
+        circle(img, center, cvRound(radius), Scalar(0, 255, 255), 1, CV_AA); 
+
+        imshow( "rect & circle", img );
+
+        char key = (char)cvWaitKey();
+        if( key == 27 || key == 'q' || key == 'Q' ) // 'ESC'
+            break;
+    }
+    return 0;
+}
+