Howtosignalprocessing
- Which method is used for edge detection?
- What are the 3 basic objective of Canny edge detection?
- What is the difference between edge detection and contour detection?
- Which is the best method among basic edge detection and why?
Which method is used for edge detection?
Common edge detection algorithms include Sobel, Canny, Prewitt, Roberts, and fuzzy logic methods. Image segmentation using the Sobel method. Image segmentation using the Canny method. Image segmentation using a Fuzzy Logic method.
What are the 3 basic objective of Canny edge detection?
Find the intensity gradients of the image. Apply non-maximum suppression to get rid of spurious response to edge detection. Apply double threshold to determine potential edges.
What is the difference between edge detection and contour detection?
As can be read in the documentation, detecting contours is mostly used for object recognition, whereas the canny edge detector is a more "global" operation. I wouldn't be surprised if the contour algorithm uses some sort of canny edge detection.
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.
