How do you find the center of an object in OpenCV Python?
Centroid (Center of blob) detection
To find the center of an image, the first step is to convert the original image into grayscale. We can use the cvtColor() method of cv2 as we did before. We read the image and convert it to a grayscale image.
What is cv2 arcLength?
cv2. arcLength() is used to calculate the perimeter of the contour. If the second argument is True then it considers the contour to be closed. Then this perimeter is used to calculate the epsilon value for cv2. approxPolyDP() function with a precision factor for approximating a shape.