Efficient impulse noise removal for highly degraded images

46 p.

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Bibliographic Details
Main Author:	Yuan, Pu.
Other Authors:	Zhu Ce
Format:	Theses and Dissertations
Published:	2011
Subjects:	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
Online Access:	http://hdl.handle.net/10356/46847
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Institution:	Nanyang Technological University

id	sg-ntu-dr.10356-46847
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spelling	sg-ntu-dr.10356-468472023-07-04T16:03:49Z Efficient impulse noise removal for highly degraded images Yuan, Pu. Zhu Ce School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing 46 p. In this thesis a two-stage noise removal scheme is proposed to process impulse noises from highly degraded images, comprising noise detecting and noise filtering. The noise detector first uses intensity difference within a subimage to cluster the pixels into two groups, the outliers and the fine pixels. Then a final detecting algorithm based on directional intensity difference is applied to the outliers to distinguish the true noise from the image details. The positions of the noisy pixels found by the detector are recorded as a noise map. Based on the noise map, a modified weighted mean filter is applied to remove the noise. Master of Science (Signal Processing) 2011-12-23T10:00:41Z 2011-12-23T10:00:41Z 2010 2010 Thesis http://hdl.handle.net/10356/46847 Nanyang Technological University application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
topic	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
spellingShingle	DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Yuan, Pu. Efficient impulse noise removal for highly degraded images
description	46 p.
author2	Zhu Ce
author_facet	Zhu Ce Yuan, Pu.
format	Theses and Dissertations
author	Yuan, Pu.
author_sort	Yuan, Pu.
title	Efficient impulse noise removal for highly degraded images
title_short	Efficient impulse noise removal for highly degraded images
title_full	Efficient impulse noise removal for highly degraded images
title_fullStr	Efficient impulse noise removal for highly degraded images
title_full_unstemmed	Efficient impulse noise removal for highly degraded images
title_sort	efficient impulse noise removal for highly degraded images
publishDate	2011
url	http://hdl.handle.net/10356/46847
_version_	1772828991129911296

Efficient impulse noise removal for highly degraded images

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