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Advances in Visual Data Compression and Communication
book

Advances in Visual Data Compression and Communication

by Feng Wu
July 2014
Intermediate to advanced content levelIntermediate to advanced
513 pages
16h 40m
English
Auerbach Publications
Content preview from Advances in Visual Data Compression and Communication
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Chapter 7
Directional Wavelet Transform
7.1 Introduction
The past decade has seen increased sophistication and maturity of wavelet-based
image compression technologies. Within the family of mathematical transforms for
image coding, discrete wavelet transform has unseated discrete cosine transform
(DCT) [127–129] as the transform of choice. The wavelet-based JPEG 2000 inter-
national standard for still image compression [130] not only obtains superior com-
pression performance over the DCT-based old JPEG standard [129], but also offers
scalability advantages in reconstruction quality and spatial resolution that are desir-
able features for many consumer and network applications.
However, the prevailing practice of 2D wavelet transform has a
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Publisher Resources

ISBN: 9781482234138