Discrete Pulse Transform of Images

Authors:
Roumen Anguelov;Inger Fabris-Rotelli
Affiliations:
Department of Mathematics and Applied Mathematics, University of Pretoria, Pretoria, South Africa 0002;Department of Mathematics and Applied Mathematics, University of Pretoria, Pretoria, South Africa 0002
Venue:
ICISP '08 Proceedings of the 3rd international conference on Image and Signal Processing
Year:
2008

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Abstract

The Discrete Pulse Transform (DPT) of images is defined by using a new class of LULU operators on multidimensional arrays. This transform generalizes the DPT of sequences and replicates its essential properties, e.g. total variation preservation. Furthermore, the discrete pulses in the transform capture the contrast in the original image on the boundary of their supports. Since images are perceived via the contrast between neighbour pixels, the DPT may be a convenient new tool for image analysis.