diff --git a/doc/tutorials/features2d/trackingmotion/generic_corner_detector/generic_corner_detector.rst b/doc/tutorials/features2d/trackingmotion/generic_corner_detector/generic_corner_detector.rst index 5dabe6004..465ff216c 100644 --- a/doc/tutorials/features2d/trackingmotion/generic_corner_detector/generic_corner_detector.rst +++ b/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 `_ -.. code-block:: cpp - - #include "opencv2/highgui/highgui.hpp" - #include "opencv2/imgproc/imgproc.hpp" - #include - #include - #include - - 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( j, i, 0 ); - float lambda_2 = myHarris_dst.at( j, i, 1 ); - Mc.at(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(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(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 ============