Why the Perona-Malik filter works:
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Bibliographic Details
Main Authors: Weickert, Joachim 1965- (Author), Benhamouda, Brahim (Author)
Format: Book
Language:English
Published: København 1997
Series:Datalogisk Institut <København>: DIKU-Rapport 1997,22
Subjects:
Abstract:Abstract: "Although the widely-used Perona-Malik filter is regarded as ill-posed, straightforward implementations are often surprisingly stable. We give an explanation for this effect by applying a discrete nonlinear scale-space framework: a spatial discretization on a fixed pixel grid gives a well-posed scale-space with many image-simplifying properties, and an explicit time discretization leads to a scheme which does not introduce additional oscillations. This explains why staircasing is essentially the only practically appearing instability."
Physical Description:9 S.
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Branch Library Mathematics & Informatics, Reports

Holdings details from Teilbibliothek Mathematik &amp; Informatik, Berichte
Call Number: 0111 2001 B 6064-1997,22 Floor plan
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