Canny edge detection vs sobel

1. Why Canny edge detection is better than Sobel?
2. Is Sobel better than Canny?
3. What is the difference between a Sobel filter and a Canny filter?
4. Is Canny edge detection the best?

Why Canny edge detection is better than Sobel?

Sobel edge detection method cannot produce smooth and thin edge compared to canny method. But same like other method, Sobel and Canny methods also very sensitive to the noise pixels. Sometime all the noisy image can not be filtered perfectly. Unremoved noisy pixels will effect the result of edge detection.

Is Sobel better than Canny?

The Sobel edge detector and Prewitt edge detector are able to detect edges but the edges detected are very less as compare to Canny edge detector. After all these results and comparative images, it is found that the performance of Canny edge detector is better than Sobel and Prewitt edge detector.

What is the difference between a Sobel filter and a Canny filter?

The main advantages of the Sobel operator are that it is simple and more time-efficient. However, the edges are rough. On the other hand, the Canny technique produces smoother edges due to the implementation of Non-maxima suppression and thresholding.

Is Canny edge detection the best?

Canny edge detection algorithm (Canny, 1986) known as optimal edge detection algorithm and the most commonly used edge detection algorithm in practice.