Title :
Edge-Directed Enhancement Based on the Generalized Radial Hilbert Transform
Author :
Guo, Ling ; Li, Jinsong ; Lu, Tongtong ; Fang, Ying
Author_Institution :
Coll. of Opt. & ElectronicTechnology, China Jiliang Univ., Hangzhou, China
Abstract :
Edge enhancement is a key part of image processing in order to sharpen the edge and optimize the visual quality of the input image. This paper proposes novel edge-directed enhancement spatial phase filters based on the generalized radial Hilbert transform theory. The simulated results showed that the proposed spatial phase filters are more efficient and flexible for edge-directed enhancement than conventional mathematical morphological edge enhancement algorithms.
Keywords :
Hilbert transforms; edge detection; image enhancement; mathematical morphology; spatial filters; edge directed enhancement; generalized radial Hilbert transform; image processing; mathematical morphological edge enhancement algorithms; spatial phase filters; visual quality; Educational institutions; Filtering algorithms; Filtering theory; Image edge detection; Optical filters; Transforms;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6270551
