doc/tutorials/features2d/trackingmotion/corner_subpixels/corner_subpixels.markdown

   1 Detecting corners location in subpixels {#tutorial_corner_subpixels}
   2 =======================================
   3
   4 @prev_tutorial{tutorial_generic_corner_detector}
   5 @next_tutorial{tutorial_feature_detection}
   6
   7 Goal
   8 ----
   9
  10 In this tutorial you will learn how to:
  11
  12 -   Use the OpenCV function @ref cv::cornerSubPix to find more exact corner positions (more exact
  13     than integer pixels).
  14
  15 Theory
  16 ------
  17
  18 Code
  19 ----
  20
  21 @add_toggle_cpp
  22 This tutorial code's is shown lines below. You can also download it from
  23 [here](https://github.com/opencv/opencv/tree/3.4/samples/cpp/tutorial_code/TrackingMotion/cornerSubPix_Demo.cpp)
  24 @include samples/cpp/tutorial_code/TrackingMotion/cornerSubPix_Demo.cpp
  25 @end_toggle
  26
  27 @add_toggle_java
  28 This tutorial code's is shown lines below. You can also download it from
  29 [here](https://github.com/opencv/opencv/tree/3.4/samples/java/tutorial_code/TrackingMotion/corner_subpixels/CornerSubPixDemo.java)
  30 @include samples/java/tutorial_code/TrackingMotion/corner_subpixels/CornerSubPixDemo.java
  31 @end_toggle
  32
  33 @add_toggle_python
  34 This tutorial code's is shown lines below. You can also download it from
  35 [here](https://github.com/opencv/opencv/tree/3.4/samples/python/tutorial_code/TrackingMotion/corner_subpixels/cornerSubPix_Demo.py)
  36 @include samples/python/tutorial_code/TrackingMotion/corner_subpixels/cornerSubPix_Demo.py
  37 @end_toggle
  38
  39 Explanation
  40 -----------
  41
  42 Result
  43 ------
  44
  45 ![](images/Corner_Subpixels_Original_Image.jpg)
  46
  47 Here is the result:
  48
  49 ![](images/Corner_Subpixels_Result.jpg)