Fixed-Coefficient Iterative Bilateral Filters for Graph-Based Image Processing

Authors:
Chang Jian;Kohei Inoue;Kenji Hara;Kiichi Urahama
Affiliations:
Kyushu University, Fukuoka, Japan 815-8540;Kyushu University, Fukuoka, Japan 815-8540;Kyushu University, Fukuoka, Japan 815-8540;Kyushu University, Fukuoka, Japan 815-8540
Venue:
PSIVT '09 Proceedings of the 3rd Pacific Rim Symposium on Advances in Image and Video Technology
Year:
2009

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Abstract

We present a graph-based image processing algorithm using fast iterative bilateral filters. The computation of bilateral filters is accelerated with fixation of the coefficients during iterations and their approximate decomposition further speeds up the computation. We show that this fixed-coefficient iterative bilateral filter is an alternative solver for optimization problems in graph-based data analyses and apply its fast algorithm to graph-based image processing tasks. Performance of the present algorithm is demonstrated with experiments of contrast enhancement and smoothing of images using cross bilateral filters, in addition to semi-supervised image segmentation and colorization of monochromatic images.