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What is Gradient Operator

Chapter 584
Encyclopedia of Information Science and Technology, Third Edition
Gradient operator is the first type of operators used for edge detection. The gradient of an image is a vector consisting of the first-order derivatives (including the magnitude and direction) of an image.
Published in Chapter:
Half Century for Image Segmentation
Yu-Jin Zhang (Department of Electronic Engineering, Tsinghua University, China)
Copyright: © 2015 |Pages: 10
DOI: 10.4018/978-1-4666-5888-2.ch584
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Chapter 286
Image Segmentation in the Last 40 Years
Gradient operator is the first type of operator used for edge detection. The gradient of an image is a vector consisting of the first order derivatives (including the magnitude and direction) of an image.
Published in Chapter: Image Segmentation in the Last 40 Years; From: Encyclopedia of Information Science and Technology, Second Edition
Full Text Chapter Download: US $37.50 Add to Cart
Chapter 579
A Review of Image Segmentation Evaluation in the 21st Century
Gradient operator is the first type of operator used for edge detection. The gradient of an image is a vector consisting of the first order derivatives (including the magnitude and direction) of an image.
Published in Chapter: A Review of Image Segmentation Evaluation in the 21st Century; From: Encyclopedia of Information Science and Technology, Third Edition
Full Text Chapter Download: US $37.50 Add to Cart
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