doc/tutorials/features2d/trackingmotion/generic_corner_detector/generic_corner_detector.markdown

   1 Creating your own corner detector {#tutorial_generic_corner_detector}
   2 =================================
   3
   4 Goal
   5 ----
   6
   7 In this tutorial you will learn how to:
   8
   9 -   Use the OpenCV function @ref cv::cornerEigenValsAndVecs to find the eigenvalues and eigenvectors
  10     to determine if a pixel is a corner.
  11 -   Use the OpenCV function @ref cv::cornerMinEigenVal to find the minimum eigenvalues for corner
  12     detection.
  13 -   Implement our own version of the Harris detector as well as the Shi-Tomasi detector, by using
  14     the two functions above.
  15
  16 Theory
  17 ------
  18
  19 Code
  20 ----
  21
  22 @add_toggle_cpp
  23 This tutorial code's is shown lines below. You can also download it from
  24 [here](https://github.com/opencv/opencv/tree/3.4/samples/cpp/tutorial_code/TrackingMotion/cornerDetector_Demo.cpp)
  25
  26 @include samples/cpp/tutorial_code/TrackingMotion/cornerDetector_Demo.cpp
  27 @end_toggle
  28
  29 @add_toggle_java
  30 This tutorial code's is shown lines below. You can also download it from
  31 [here](https://github.com/opencv/opencv/tree/3.4/samples/java/tutorial_code/TrackingMotion/generic_corner_detector/CornerDetectorDemo.java)
  32
  33 @include samples/java/tutorial_code/TrackingMotion/generic_corner_detector/CornerDetectorDemo.java
  34 @end_toggle
  35
  36 @add_toggle_python
  37 This tutorial code's is shown lines below. You can also download it from
  38 [here](https://github.com/opencv/opencv/tree/3.4/samples/python/tutorial_code/TrackingMotion/generic_corner_detector/cornerDetector_Demo.py)
  39
  40 @include samples/python/tutorial_code/TrackingMotion/generic_corner_detector/cornerDetector_Demo.py
  41 @end_toggle
  42
  43 Explanation
  44 -----------
  45
  46 Result
  47 ------
  48
  49 ![](images/My_Harris_corner_detector_Result.jpg)
  50
  51 ![](images/My_Shi_Tomasi_corner_detector_Result.jpg)