Object Edge Detection Using the Magnitude of the Gradient: Concepts and Techniques - Brossura

Acharjya, Pinaki Pratim; Koley, Santanu; Bera, Mihir Baran

Brossura

ISBN 10: 6203841102 ISBN 13: 9786203841107

Casa editrice: LAP LAMBERT Academic Publishing, 2021

Riassunto

Edge detection is very important terminology in image processing and for computer vision. Edge detection is in the forefront of image processing for object detection, so it is crucial to have a good understanding of edge detection operators. An improved scheme for contour detection with better performance measure has been proposed in this book with the help of image gradients. A 9x9 Laplacian and Gaussian (LOG) filter has been proposed. The present study has shown that the gradient images obtained by the 9x9 Laplacian and Gaussian (LOG) mask appears to be much clearer with sharp and prominent edges than those obtained through 5x5 Laplacian and Gaussian (LOG) filter and also provides better results than traditional edge detectors. The method has been applied to a number of real life digital images and better performance measure of contour detection has been achieved. Comparative analyses of different edge detection operators in image processing are also presented and discussed. It has been observed that the performance of canny edge detection operator is much better then Sobel, Roberts, Prewitt and Laplacian of Gaussian (LoG) in respect to the image appearance and object boundary.

Dettagli dell'edizione

• Editore: LAP LAMBERT Academic Publishing
• Data di pubblicazione: 2021
• Lingua: Inglese
• ISBN 10: 6203841102
• ISBN 13: 9786203841107
• Rilegatura: Copertina flessibile
• Numero di pagine: 64
• Contatto del produttore: non disponibile
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