Edge and corner preserving smoothing for artistic imaging

Giuseppe Papari*, Nicolai Petkov, Patrizio Campisi

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    3 Citations (Scopus)

    Abstract

    What visually distinguishes a painting from a photograph is often the absence of texture and the sharp edges: in many paintings, edges are sharper than in photographic images while textured areas contain less detail. Such artistic effects can be achieved by filters that smooth textured areas while preserving, or enhancing, edges and corners. However, not all edge preserving smoothers are suitable for artistic imaging. This study presents a generalization of the well know Kuwahara filter aimed at obtaining an artistic effect. Theoretical limitations of the Kuwahara filter are discussed and solved by the new nonlinear operator proposed here. Experimental results show that the proposed operator produces painting-like output images and is robust to corruption of the input image such as blurring. Comparison with existing techniques shows situations where traditional edge preserving smoothers that are commonly used for artistic imaging fail while our approach produces good results.

    Original languageEnglish
    Title of host publicationIMAGE PROCESSING: ALGORITHMS AND SYSTEMS V
    EditorsJT Astola, KO Egiazarian, ER Dougherty
    Place of PublicationBELLINGHAM
    PublisherSPIE - INT SOC OPTICAL ENGINEERING
    Number of pages11
    ISBN (Print)978-0-8194-6610-5
    Publication statusPublished - 2007
    EventConference on Image Processing - Algorithms and Systems V - , Canada
    Duration: 29-Jan-200730-Jan-2007

    Publication series

    NameProceedings of SPIE
    PublisherSPIE-INT SOC OPTICAL ENGINEERING
    Volume6497
    ISSN (Print)0277-786X

    Other

    OtherConference on Image Processing - Algorithms and Systems V
    Country/TerritoryCanada
    Period29/01/200730/01/2007

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