Edge

Find best fitting rectangles after applying edge detection

Find best fitting rectangles after applying edge detection
  1. Which is the best method among basic edge detection and why?
  2. How do we detect edges of items in a drawing in OpenCV?

Which is the best method among basic edge detection and why?

Canny Operator

Canny edge detector is probably the most commonly used and most effective method, it can have it's own tutorial, because it's much more complex edge detecting method then the ones described above.

How do we detect edges of items in a drawing in OpenCV?

How are Edges Detected? Edges are characterized by sudden changes in pixel intensity. To detect edges, we need to go looking for such changes in the neighboring pixels. Come, let's explore the use of two important edge-detection algorithms available in OpenCV: Sobel Edge Detection and Canny Edge Detection.

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