NDLI: Color image compression using multiwavelets with modified SPIHT algorithm

Content Provider	IEEE Xplore Digital Library
Author	Sudhakar, R. Sudha, V.K.
Copyright Year	2011
Description	Author affiliation: ECE Department, Dr. Mahalingam college of Engineering and Technology, Pollachi, India (Sudhakar, R.; Sudha, V.K.)
Abstract	Color Image compression is now essential for applications such as transmission and storage in data bases since color gives a natural and pleasing nature for any object. For still image compression, the ‘Joint Photographic Experts Group’ standard has been established by International Standards Organization (ISO). The performance of existing image coding standards generally degrades at low bit-rates because of the underlying block based Discrete Cosine Transform (DCT) scheme. Over the past decade, the success of wavelets in solving many different problems has contributed to its unprecedented popularity. Due to implementation constraints, scalar wavelets do not possess all the properties which are needed for a better performance in compression. The new class of wavelets, called multiwavelets, which possess more than one scaling filters overcomes this problem. The objective of this paper is to develop an efficient color compression scheme and to obtain better quality and higher compression ratio through multiwavelet transform and embedded coding of multiwavelet coefficients through Set Partitioning In Hierarchical Trees (SPIHT) algorithm. A comparison of the best known multiwavelets is made to the best known scalar wavelets. Both quantitative and qualitative measures of performance are examined.
Starting Page	216
Ending Page	222
File Size	157771
Page Count	7
File Format	PDF
ISBN	9781467306706
e-ISBN	9781467306713
DOI	10.1109/ICoAC.2011.6165178
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-14
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms Wavelet Image coding PSNR Multiwavelet filter banks Filter banks Modified SPIHT Algorithm Mutiwavelet Approximation methods Orthogonality Multiresolution analysis SPIHT
Content Type	Text
Resource Type	Article

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