Howtosignalprocessing
- What are edge detection operators?
- Which of the following operator is used for edge detection of an image?
- What is meant by edge detection?
What are edge detection operators?
Edge Detection Operators are of two types: Gradient – based operator which computes first-order derivations in a digital image like, Sobel operator, Prewitt operator, Robert operator. Gaussian – based operator which computes second-order derivations in a digital image like, Canny edge detector, Laplacian of Gaussian.
Which of the following operator is used for edge detection of an image?
Laplacian Operator: Laplacian Operator is also a derivative operator which is used to find edges in an image. The major difference between Laplacian and other operators like Prewitt, Sobel, Robinson and Kirsch is that these all are first order derivative masks but Laplacian is a second order derivative mask.
What is meant by edge detection?
Edge detection is a process applied to digital image processing. It is really a name for a collection of algorithms and tools that do a particular thing – enhancing the edges of objects in an image by using mathematical models.
