Title :
Analysis of wavelet image compression using nonorthogonal and orthogonally compensated W-transforms
Author :
Akujuobi, Cajetan M. ; Kwong, Man Kam
Author_Institution :
Dept. of Phys. & Electron. Eng., Norfolk State Univ., VA, USA
Abstract :
The W-transform is constructed by relaxing the orthogonality conditions required in the classical wavelet transforms. Using nonorthogonal and orthogonally compensated W-transforms, different images are compressed and reconstructed. The effects of the two types of W-transforms on compressed images are analyzed. Different measures of compression quality are used in the performance evaluation of the reconstructed images. The quadratic spline and Daubechies wavelet coefficients are also compared for compression effects on different images
Keywords :
data compression; image coding; image reconstruction; splines (mathematics); transform coding; wavelet transforms; Daubechies wavelet coefficients; compressed images; compression effects; compression quality measures; image reconstruction; nonorthogonal compensated W-transforms; orthogonality conditions; orthogonally compensated W-transforms; performance evaluation; quadratic spline coefficients; wavelet image compression; wavelet transforms; Degradation; Finite impulse response filter; Image analysis; Image coding; Image reconstruction; Laboratories; Spline; Wavelet analysis; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Southeastcon '96. Bringing Together Education, Science and Technology., Proceedings of the IEEE
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-3088-9
DOI :
10.1109/SECON.1996.510078
