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Polygon detection in images

Dissertation (MSc)--University of Pretoria, 2015.

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Other Authors: Fabris-Rotelli, Inger Nicolette
Format: Thesis
Language:English
Published: University of Pretoria 2015
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access_status_str Open Access
author2 Fabris-Rotelli, Inger Nicolette
author_browse Fabris-Rotelli, Inger Nicolette
author_facet Fabris-Rotelli, Inger Nicolette
collection Thesis
dc_rights_str_mv © 2015 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.
description Dissertation (MSc)--University of Pretoria, 2015.
format Thesis
id oai:repository.up.ac.za:2263/50823
institution University of Pretoria (South Africa)
language English
last_indexed 2026-06-10T12:38:50.869Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository
publishDate 2015
publishDateRange 2015
publishDateSort 2015
publisher University of Pretoria
publisherStr University of Pretoria
record_format dspace
source_str UPSpace — University of Pretoria Institutional Repository
spelling oai:repository.up.ac.za:2263/50823 Polygon detection in images Fabris-Rotelli, Inger Nicolette xionvann@gmail.com Van Niekerk, Johan Magnus UCTD Dissertation (MSc)--University of Pretoria, 2015. A combination of image processing algorithms can be used to detect and extract certain objects from images. Image noise may obscure the objects in the images and must rst be removed using image denoising and smoothing methods before the extraction of image objects can e ciently be attempted. Contour detection algorithms can be used to identify and extract objects from denoised images. The type of image, noise and noise intensity will determine the e ectiveness of the denoising and smoothing methods. The combination of the aforementioned will also determine the e ciency of the contour detection algorithms. In this dissertation we give some background on basic mathematical morphology techniques and we see how those techniques are used in various image smoothers and contour detection techniques. We develop our own smoother using some ideas from other well-known smoothers and compare the performance of the di erent smoothing methods. Various contour detection algorithms are investigated and we put the combination of the smoothing methods and the contour detection algorithms to the test by comparing how e ciently they detect and extract objects from images under various conditions. tm2015 Statistics MSc Unrestricted 2015-11-25T09:53:47Z 2015-11-25T09:53:47Z 2015/09/01 2015 Dissertation van Niekerk, JM 2015, Polygon detection in images, MSc Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/50823> S2015 http://hdl.handle.net/2263/50823 en © 2015 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria
spellingShingle UCTD
Polygon detection in images
title Polygon detection in images
title_full Polygon detection in images
title_fullStr Polygon detection in images
title_full_unstemmed Polygon detection in images
title_short Polygon detection in images
title_sort polygon detection in images
topic UCTD
url http://hdl.handle.net/2263/50823