Feature #3957

samples/cpp/imagelist_creator.cpp

@@ -23,14 +23,20 @@ static void help(char** av)
 
 int main(int ac, char** av)
 {
-  if (ac < 3)
+  cv::CommandLineParser parser(ac, av, "{help h||}{@output||}");
+  if (parser.has("help"))
+  {
+    help(av);
+    return 0;
+  }
+  string outputname = parser.get<string>("@output");
+
+  if (outputname.empty())
   {
     help(av);
     return 1;
   }
 
-  string outputname = av[1];
-
   Mat m = imread(outputname); //check if the output is an image - prevent overwrites!
   if(!m.empty()){
     std::cerr << "fail! Please specify an output file, don't want to overwrite you images!" << endl;