Add MORPH_DIAMOND support to samples and tutorials

samples/cpp/morphology2.cpp

@@ -12,12 +12,13 @@ static void help(char** argv)
 
 printf("\nShow off image morphology: erosion, dialation, open and close\n"
     "Call:\n   %s [image]\n"
-    "This program also shows use of rect, ellipse and cross kernels\n\n", argv[0]);
+    "This program also shows use of rect, ellipse, cross and diamond kernels\n\n", argv[0]);
 printf( "Hot keys: \n"
     "\tESC - quit the program\n"
     "\tr - use rectangle structuring element\n"
     "\te - use elliptic structuring element\n"
     "\tc - use cross-shaped structuring element\n"
+    "\td - use diamond-shaped structuring element\n"
     "\tSPACE - loop through all the options\n" );
 }
 
@@ -101,8 +102,10 @@ int main( int argc, char** argv )
             element_shape = MORPH_RECT;
         else if( c == 'c' )
             element_shape = MORPH_CROSS;
+        else if( c == 'd' )
+            element_shape = MORPH_DIAMOND;
         else if( c == ' ' )
-            element_shape = (element_shape + 1) % 3;
+            element_shape = (element_shape + 1) % 4;
     }
 
     return 0;

samples/cpp/tutorial_code/ImgProc/Morphology_1.cpp

@@ -18,7 +18,7 @@ int erosion_elem = 0;
 int erosion_size = 0;
 int dilation_elem = 0;
 int dilation_size = 0;
-int const max_elem = 2;
+int const max_elem = 3;
 int const max_kernel_size = 21;
 
 /** Function Headers */
@@ -47,7 +47,7 @@ int main( int argc, char** argv )
   moveWindow( "Dilation Demo", src.cols, 0 );
 
   /// Create Erosion Trackbar
-  createTrackbar( "Element:\n 0: Rect \n 1: Cross \n 2: Ellipse", "Erosion Demo",
+  createTrackbar( "Element:\n 0: Rect \n 1: Cross \n 2: Ellipse \n 3: Diamond", "Erosion Demo",
           &erosion_elem, max_elem,
           Erosion );
 
@@ -56,7 +56,7 @@ int main( int argc, char** argv )
           Erosion );
 
   /// Create Dilation Trackbar
-  createTrackbar( "Element:\n 0: Rect \n 1: Cross \n 2: Ellipse", "Dilation Demo",
+  createTrackbar( "Element:\n 0: Rect \n 1: Cross \n 2: Ellipse \n 3: Diamond", "Dilation Demo",
           &dilation_elem, max_elem,
           Dilation );
 
@@ -83,6 +83,7 @@ void Erosion( int, void* )
   if( erosion_elem == 0 ){ erosion_type = MORPH_RECT; }
   else if( erosion_elem == 1 ){ erosion_type = MORPH_CROSS; }
   else if( erosion_elem == 2) { erosion_type = MORPH_ELLIPSE; }
+  else if( erosion_elem == 3) { erosion_type = MORPH_DIAMOND; }
 
   //![kernel]
   Mat element = getStructuringElement( erosion_type,
@@ -106,6 +107,7 @@ void Dilation( int, void* )
   if( dilation_elem == 0 ){ dilation_type = MORPH_RECT; }
   else if( dilation_elem == 1 ){ dilation_type = MORPH_CROSS; }
   else if( dilation_elem == 2) { dilation_type = MORPH_ELLIPSE; }
+  else if( dilation_elem == 3) { dilation_type = MORPH_DIAMOND; }
 
   Mat element = getStructuringElement( dilation_type,
                        Size( 2*dilation_size + 1, 2*dilation_size+1 ),

samples/cpp/tutorial_code/ImgProc/Morphology_2.cpp

@@ -18,7 +18,7 @@ int morph_elem = 0;
 int morph_size = 0;
 int morph_operator = 0;
 int const max_operator = 4;
-int const max_elem = 2;
+int const max_elem = 3;
 int const max_kernel_size = 21;
 
 const char* window_name = "Morphology Transformations Demo";
@@ -54,7 +54,7 @@ int main( int argc, char** argv )
 
   //![create_trackbar2]
   /// Create Trackbar to select kernel type
-  createTrackbar( "Element:\n 0: Rect - 1: Cross - 2: Ellipse", window_name,
+  createTrackbar( "Element:\n 0: Rect - 1: Cross - 2: Ellipse - 3: Diamond", window_name,
                   &morph_elem, max_elem,
                   Morphology_Operations );
   //![create_trackbar2]