add preview video

MarkerTracking.cpp

@@ -36,8 +36,8 @@ int main() {
   const string contoursWindow = "Contours";
   const string thresholdWindow = "Threshold";
 
-  namedWindow(contoursWindow, WINDOW_FREERATIO);
-  namedWindow(thresholdWindow, WINDOW_FREERATIO);
+  namedWindow(contoursWindow, WINDOW_AUTOSIZE);
+  namedWindow(thresholdWindow, WINDOW_AUTOSIZE);
 
   const string UI = "Threshold";
   int threshold = 65;
@@ -47,6 +47,11 @@ int main() {
   Mat imgFiltered;
   Detector detector;
 
+  //VIDEO
+  //VideoWriter threshOut("threshold.avi", VideoWriter::fourcc('M', 'J', 'P', 'G'), 24, Size(cap.get(3), cap.get(4)));
+  //VideoWriter imgOut("makerDetection.avi", VideoWriter::fourcc('M', 'J', 'P', 'G'), 24, Size(cap.get(3), cap.get(4)));
+
+
   while (cap.read(frame)) {
 
     // --- Process Frame ---
@@ -63,11 +68,21 @@ int main() {
     imshow(contoursWindow, imgFiltered);
     imshow(thresholdWindow, videoStreamFrameGray);
 
+    //VIDEO
+    //threshOut.write(videoStreamFrameGray);
+    //imgOut.write(imgFiltered);
+
     if (waitKey(10) == 27) {
       break;
     }
   }
 
+  cap.release();
+
+  //VIDEO
+  //threshOut.release();
+  //imgOut.release();
+
   destroyAllWindows();
 
   return (0);