Title :
Still image compression based on 2D discrete wavelet transform
Author :
Tan, R.H.G. ; Zhang, J.F. ; Morgan, R. ; Greenwood, A.
Author_Institution :
Sch. of Eng., Liverpool Univ., UK
fDate :
10/28/1999 12:00:00 AM
Abstract :
The objective of this Letter is to develop new techniques for enhancing the compression of still images. The features of the proposed algorithm include: (i) zero mapping, which exploits the inherent self-similarity of wavelet coefficients at different scales, (ii) adaptive scanning, and (iii) data packing. Our algorithm outperforms both JPEG and the embedded zerotree wavelet (EZW) algorithm
Keywords :
data compression; discrete wavelet transforms; image coding; 2D discrete wavelet transform; adaptive scanning; data packing; inherent self-similarity; still image compression; wavelet coefficients; zero mapping;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991305
