Fractal-based edge extraction and its application to textured image retrieval

Minghong Pi; Chong Sze Tong; Anup Basu

doi:10.1117/1.2176674

1 January 2006 Fractal-based edge extraction and its application to textured image retrieval

Minghong Pi, Chong Sze Tong, Anup Basu

Author Affiliations +

Journal of Electronic Imaging, Vol. 15, Issue 1, 013012 (January 2006). https://doi.org/10.1117/1.2176674

Abstract

We discuss how an orthogonalized fractal decoding algorithm can be used to derive a fractal decomposition of the encoded image into a dc and a set of ac components that characterize the edge information in the image. The dc component can be characterized by its histogram. The ac components provide a model for the texture, and the distribution of each ac component can be well represented by a generalized Gaussian density (GGD), which can be efficiently characterized by two GGD parameters. Such characterization of the ac components is exploited in this work for texture image retrieval, and experimental results show that our proposed indexing technique based on our novel fractal dc and ac signature provides superior retrieval performance compared to current fractal indexing techniques. Moreover, the performance of our approach is comparable to the state of the art wavelet-based method at a fraction of the retrieval time.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Minghong Pi, Chong Sze Tong, and Anup Basu "Fractal-based edge extraction and its application to textured image retrieval," Journal of Electronic Imaging 15(1), 013012 (1 January 2006). https://doi.org/10.1117/1.2176674

Published: 1 January 2006

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