Help and parsing command line were updated in next samples: camshiftdemo, calibration_artificial

samples/cpp/calibration_artificial.cpp

@@ -11,11 +11,11 @@ using namespace cv;
 using namespace std;
 void help()
 {
-	cout << "\nThis code generates an artificial camera and artificial chessboard images,\n"
-         <<  "and then calibrates. It is basically test code for calibration that shows\n"
-		 <<	"how to package calibration points and then calibrate the camera.\n"
-		 <<	"Call:\n"
-		 <<	"./calibration_artificial\n" << endl;
+    printf( "\nThis code generates an artificial camera and artificial chessboard images,\n"
+            "and then calibrates. It is basically test code for calibration that shows\n"
+            "how to package calibration points and then calibrate the camera.\n"
+            "Usage:\n"
+            "./calibration_artificial\n\n");
 }
 namespace cv
 {

samples/cpp/camshiftdemo.cpp

+#include "opencv2/core/core.hpp"
 #include "opencv2/video/tracking.hpp"
 #include "opencv2/imgproc/imgproc.hpp"
 #include "opencv2/highgui/highgui.hpp"
 
 #include <iostream>
+#include <stdio.h>
 #include <ctype.h>
 
 using namespace cv;
@@ -10,19 +12,17 @@ using namespace std;
 
 void help()
 {
-	cout << "\nThis is a demo that shows mean-shift based tracking\n"
-		 <<   "You select a color objects such as your face and it tracks it.\n"
-		 <<   "This reads from video camera (0 by default, or the camera number the user enters\n"
-		 << "Call:\n"
-		 << "\n./camshiftdemo [camera number]"
-		 << "\n" << endl;
-
-	cout << "\n\nHot keys: \n"
-        "\tESC - quit the program\n"
-        "\tc - stop the tracking\n"
-        "\tb - switch to/from backprojection view\n"
-        "\th - show/hide object histogram\n"
-        "To initialize tracking, select the object with mouse\n" << endl;
+    printf("\nThis is a demo that shows mean-shift based tracking\n"
+           "You select a color objects such as your face and it tracks it.\n"
+           "This reads from video camera (0 by default, or the camera number the user enters\n"
+           "Usage:\n"
+           "./camshiftdemo [--cameraIndex]=<camera number, zero as default>\n"
+           "\nHot keys: \n"
+           "\tESC - quit the program\n"
+           "\tc - stop the tracking\n"
+           "\tb - switch to/from backprojection view\n"
+           "\th - show/hide object histogram\n"
+           "To initialize tracking, select the object with mouse\n");
 }
 
 Mat image;
@@ -64,8 +64,13 @@ void onMouse( int event, int x, int y, int, void* )
 
 
 
-int main( int argc, char** argv )
+int main( int argc, const char** argv )
 {
+    help();
+
+    CommandLineParser parser(argc, argv);
+
+    unsigned int cameraInd = parser.get<unsigned int>("cameraIndex", 0);
     VideoCapture cap;
     Rect trackWindow;
     RotatedRect trackBox;
@@ -73,10 +78,11 @@ int main( int argc, char** argv )
     float hranges[] = {0,180};
     const float* phranges = hranges;
 
-    if( argc == 1 || (argc == 2 && strlen(argv[1]) == 1 && isdigit(argv[1][0])))
-        cap.open(argc == 2 ? argv[1][0] - '0' : 0);
-    else if( argc == 2 )
-        cap.open(argv[1]);
+//    if( argc == 1 || (argc == 2 && strlen(argv[1]) == 1 && isdigit(argv[1][0])))
+//        cap.open(argc == 2 ? argv[1][0] - '0' : 0);
+//    else if( argc == 2 )
+//        cap.open(argv[1]);
+    cap.open(cameraInd);
 
     if( !cap.isOpened() )
     {
@@ -85,8 +91,6 @@ int main( int argc, char** argv )
         return 0;
     }
 
-    help();
-
     namedWindow( "Histogram", 1 );
     namedWindow( "CamShift Demo", 1 );
     setMouseCallback( "CamShift Demo", onMouse, 0 );