Merge pull request #369 from asmorkalov:corner_detection_tutorial

doc/tutorials/features2d/trackingmotion/generic_corner_detector/generic_corner_detector.rst

@@ -22,127 +22,8 @@ Code
 
 This tutorial code's is shown lines below. You can also download it from `here <http://code.opencv.org/projects/opencv/repository/revisions/master/raw/samples/cpp/tutorial_code/TrackingMotion/cornerDetector_Demo.cpp>`_
 
-.. code-block:: cpp
-
-   #include "opencv2/highgui/highgui.hpp"
-   #include "opencv2/imgproc/imgproc.hpp"
-   #include <iostream>
-   #include <stdio.h>
-   #include <stdlib.h>
-
-   using namespace cv;
-   using namespace std;
-
-   /// Global variables
-   Mat src, src_gray;
-   Mat myHarris_dst; Mat myHarris_copy; Mat Mc;
-   Mat myShiTomasi_dst; Mat myShiTomasi_copy;
-
-   int myShiTomasi_qualityLevel = 50;
-   int myHarris_qualityLevel = 50;
-   int max_qualityLevel = 100;
-
-   double myHarris_minVal; double myHarris_maxVal;
-   double myShiTomasi_minVal; double myShiTomasi_maxVal;
-
-   RNG rng(12345);
-
-   char* myHarris_window = "My Harris corner detector";
-   char* myShiTomasi_window = "My Shi Tomasi corner detector";
-
-   /// Function headers
-   void myShiTomasi_function( int, void* );
-   void myHarris_function( int, void* );
-
-   /** @function main */
-   int main( int argc, char** argv )
-   {
-     /// Load source image and convert it to gray
-     src = imread( argv[1], 1 );
-     cvtColor( src, src_gray, CV_BGR2GRAY );
-
-     /// Set some parameters
-     int blockSize = 3; int apertureSize = 3;
-
-     /// My Harris matrix -- Using cornerEigenValsAndVecs
-     myHarris_dst = Mat::zeros( src_gray.size(), CV_32FC(6) );
-     Mc = Mat::zeros( src_gray.size(), CV_32FC1 );
-
-     cornerEigenValsAndVecs( src_gray, myHarris_dst, blockSize, apertureSize, BORDER_DEFAULT );
-
-     /* calculate Mc */
-     for( int j = 0; j < src_gray.rows; j++ )
-        { for( int i = 0; i < src_gray.cols; i++ )
-             {
-               float lambda_1 = myHarris_dst.at<float>( j, i, 0 );
-               float lambda_2 = myHarris_dst.at<float>( j, i, 1 );
-               Mc.at<float>(j,i) = lambda_1*lambda_2 - 0.04*pow( ( lambda_1 + lambda_2 ), 2 );
-             }
-        }
-
-     minMaxLoc( Mc, &myHarris_minVal, &myHarris_maxVal, 0, 0, Mat() );
-
-     /* Create Window and Trackbar */
-     namedWindow( myHarris_window, CV_WINDOW_AUTOSIZE );
-     createTrackbar( " Quality Level:", myHarris_window, &myHarris_qualityLevel, max_qualityLevel,
-                       myHarris_function );
-     myHarris_function( 0, 0 );
-
-     /// My Shi-Tomasi -- Using cornerMinEigenVal
-     myShiTomasi_dst = Mat::zeros( src_gray.size(), CV_32FC1 );
-     cornerMinEigenVal( src_gray, myShiTomasi_dst, blockSize, apertureSize, BORDER_DEFAULT );
-
-     minMaxLoc( myShiTomasi_dst, &myShiTomasi_minVal, &myShiTomasi_maxVal, 0, 0, Mat() );
-
-     /* Create Window and Trackbar */
-     namedWindow( myShiTomasi_window, CV_WINDOW_AUTOSIZE );
-     createTrackbar( " Quality Level:", myShiTomasi_window, &myShiTomasi_qualityLevel, max_qualityLevel,
-                        myShiTomasi_function );
-     myShiTomasi_function( 0, 0 );
-
-     waitKey(0);
-     return(0);
-   }
-
-   /** @function myShiTomasi_function  */
-   void myShiTomasi_function( int, void* )
-   {
-     myShiTomasi_copy = src.clone();
-
-     if( myShiTomasi_qualityLevel < 1 ) { myShiTomasi_qualityLevel = 1; }
-
-     for( int j = 0; j < src_gray.rows; j++ )
-        { for( int i = 0; i < src_gray.cols; i++ )
-             {
-               if( myShiTomasi_dst.at<float>(j,i) > myShiTomasi_minVal + ( myShiTomasi_maxVal -
-                        myShiTomasi_minVal )*myShiTomasi_qualityLevel/max_qualityLevel )
-                 { circle( myShiTomasi_copy, Point(i,j), 4, Scalar( rng.uniform(0,255),
-                            rng.uniform(0,255), rng.uniform(0,255) ), -1, 8, 0 ); }
-             }
-        }
-     imshow( myShiTomasi_window, myShiTomasi_copy );
-   }
-
-   /** @function myHarris_function */
-   void myHarris_function( int, void* )
-   {
-     myHarris_copy = src.clone();
-
-     if( myHarris_qualityLevel < 1 ) { myHarris_qualityLevel = 1; }
-
-     for( int j = 0; j < src_gray.rows; j++ )
-        { for( int i = 0; i < src_gray.cols; i++ )
-             {
-               if( Mc.at<float>(j,i) > myHarris_minVal + ( myHarris_maxVal - myHarris_minVal )
-                                                            *myHarris_qualityLevel/max_qualityLevel )
-                 { circle( myHarris_copy, Point(i,j), 4, Scalar( rng.uniform(0,255), rng.uniform(0,255),
-                           rng.uniform(0,255) ), -1, 8, 0 ); }
-             }
-        }
-     imshow( myHarris_window, myHarris_copy );
-   }
-
-
+.. literalinclude:: ../../../../../samples/cpp/tutorial_code/TrackingMotion/cornerDetector_Demo.cpp
+   :language: cpp
 
 Explanation
 ============