Edge extraction

1. What is edge extraction in image processing?
2. Is edge detection feature extraction?
3. What are edge filters used for?

What is edge extraction in image processing?

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.

Is edge detection feature extraction?

Edge detection is one of the steps used in image processing. It can be used for both feature extraction to detect objects and for verifying pixel integrity of two images.

What are edge filters used for?

Edges are usually one of the most important features in a structure, and can often be used for measurements after appropriate edge detection has been applied. The edge detection filters available in Dragonfly can be used to emphasize the edges and transitions in an image.