Howtosignalprocessing
How do you find the contour in OpenCV?
To draw the contours, cv. drawContours function is used. It can also be used to draw any shape provided you have its boundary points. Its first argument is source image, second argument is the contours which should be passed as a Python list, third argument is index of contours (useful when drawing individual contour.
How do you find the coordinates of contours?
We will be using OpenCV findContour() function that helps in extracting the contours from the image. Approach : The Co-ordinates of each vertices of a contour is hidden in the contour itself. In this approach, we will be using numpy library to convert all the co-ordinates of a contour into a linear array.
