Edge detection

1. What is meant by edge detection?
2. Which algorithm is best for edge detection?
3. What is edge detection in CNN?

What is meant by edge detection?

Edge detection is an image processing technique for finding the boundaries of objects within images. It works by detecting discontinuities in brightness. Edge detection is used for image segmentation and data extraction in areas such as image processing, computer vision, and machine vision.

Which algorithm is best for edge detection?

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

What is edge detection in CNN?

Edge detection is the task of identifying object boundaries within a still image (see Fig. 1). As a fundamental technique, it has been widely used in image processing and computer vision areas [1–5].