Update samples (#10333)

* Update samples

* Update calib3d.hpp

* Update calib3d.hpp

* Update calib3d.hpp

* Update calib3d.hpp

samples/cpp/tutorial_code/ImgTrans/CannyDetector_Demo.cpp

@@ -5,8 +5,8 @@
  */
 
 #include "opencv2/imgproc.hpp"
-#include "opencv2/imgcodecs.hpp"
 #include "opencv2/highgui.hpp"
+#include <iostream>
 
 using namespace cv;
 
@@ -56,13 +56,18 @@ static void CannyThreshold(int, void*)
 /**
  * @function main
  */
-int main( int, char** argv )
+int main( int argc, char** argv )
 {
   //![load]
-  src = imread( argv[1], IMREAD_COLOR ); // Load an image
+  CommandLineParser parser( argc, argv, "{@input | ../data/fruits.jpg | input image}" );
+  src = imread( parser.get<String>( "@input" ), IMREAD_COLOR ); // Load an image
 
   if( src.empty() )
-    { return -1; }
+  {
+    std::cout << "Could not open or find the image!\n" << std::endl;
+    std::cout << "Usage: " << argv[0] << " <Input image>" << std::endl;
+    return -1;
+  }
   //![load]
 
   //![create_mat]

samples/cpp/tutorial_code/ImgTrans/Geometric_Transforms_Demo.cpp

@@ -20,7 +20,7 @@ const char* warp_rotate_window = "Warp + Rotate";
 /**
  * @function main
  */
-int main( int, char** argv )
+int main( int argc, char** argv )
 {
   Point2f srcTri[3];
   Point2f dstTri[3];
@@ -30,7 +30,14 @@ int main( int, char** argv )
   Mat src, warp_dst, warp_rotate_dst;
 
   /// Load the image
-  src = imread( argv[1], IMREAD_COLOR );
+  CommandLineParser parser( argc, argv, "{@input | ../data/lena.jpg | input image}" );
+  src = imread( parser.get<String>( "@input" ), IMREAD_COLOR );
+  if( src.empty() )
+  {
+      cout << "Could not open or find the image!\n" << endl;
+      cout << "Usage: " << argv[0] << " <Input image>" << endl;
+      return -1;
+  }
 
   /// Set the dst image the same type and size as src
   warp_dst = Mat::zeros( src.rows, src.cols, src.type() );

samples/cpp/tutorial_code/ImgTrans/houghcircles.cpp

@@ -12,7 +12,7 @@ using namespace std;
 int main(int argc, char** argv)
 {
     //![load]
-    const char* filename = argc >=2 ? argv[1] : "../../../data/smarties.png";
+    const char* filename = argc >=2 ? argv[1] : "../data/smarties.png";
 
     // Loads an image
     Mat src = imread( filename, IMREAD_COLOR );

samples/cpp/tutorial_code/ImgTrans/houghlines.cpp

@@ -16,7 +16,7 @@ int main(int argc, char** argv)
     Mat dst, cdst, cdstP;
 
     //![load]
-    const char* default_file = "../../../data/sudoku.png";
+    const char* default_file = "../data/sudoku.png";
     const char* filename = argc >=2 ? argv[1] : default_file;
 
     // Loads an image