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niisar/Detect the position of an object - computer vision.md

Last active January 28, 2019 09:20
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Detect the position of an object - computer vision.md
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Detect the position of an object - computer vision.md

Detect the position of an object - computer vision

Problem

Comparing two images: The observed position vs the required position.

Solution using (OpenCV-Python)

  1. Load your image and binarize it.
  2. Use cv2.findContours(thresh, 1, 2) to find the contour of interest object.
  3. Find the bounding rectangle using cv2.boundingRect(cnt) function.
  4. Using rectangle coordinates find its center as representative point.
  5. Compare the centre with your reference point by calculaing the euclidean distance.

OpenCV is python and C++ based library. But as a C# guy i whould use Emgu CV which is a Wrapper of OpenCV and has almost all the function of OpenCV with Speed and Performance (50 frames per second)

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