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Efficient subtree splitting algorithm for wavelet-based fractal image coding

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4 Author(s)
Po, L.M. ; CityU Image Process. Lab., City Univ. of Hong Kong, Hong Kong ; Zhang, Y. ; Cheung, K.W. ; Cheung, C.H.

In this paper, a novel wavelet subtree splitting algorithm is proposed, which divides a subtree into scalar quantized wavelet coefficients and fractal coded sub-subtree. Based on this new technique, a variable size wavelet subtree fractal coding scheme for still image compression is developed. Experimental results show that the new scheme can achieve nearly optimal partition of wavelet subtree with substantially computational reduction as compared with Davis' scheme

Published in:

Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on  (Volume:4 )

Date of Conference:

31 May-3 Jun 1998