How to detect edges and rectangles

1. How do we detect edges?
2. How do we detect edges of items in a drawing?
3. Which is called as edge detection tool?
4. What is line and edge detection?

How do we detect edges?

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.

How do we detect edges of items in a drawing?

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.

Which is called as edge detection tool?

Edge detection is a fundamental tool in image processing, machine vision and computer vision, particularly in the areas of feature detection and feature extraction.

What is line and edge detection?

Line Detection: In image processing, line detection is an algorithm that takes a collection of n edge. points and finds all the lines on which these edge points lie. The most popular line detectors are the Hough transform and convolution-based techniques.