Title

Application Of Multitransforms For Lossy Image Representation

Authors

Authors

W. B. Mikhael;A. Ramaswamy

Comments

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Abbreviated Journal Title

IEEE Trans. Circuits Syst. II-Analog Digit. Signal Process.

Keywords

Engineering, Electrical & Electronic

Abstract

The multitransform technique is applied for lossy image representation. The image is first divided into smaller non-overlapping submages. Each subimage is resolved into two dimensional (2-D) subsignals, which are then compactly represented in a particular transform domain. This leads to an efficient representation of the subimage by superimposing the dominant coefficients corresponding to each subsignal. An adaptive algorithm in conjunction with an optimization strategy are developed to minimize the difference between the original and the reconstructed subimage. Extensive simulations verify that, for a given number of retained coefficients, the combination of the DCT and Haar transforms yields a more compact representation than using DCT or Haar alone.

Journal Title

Ieee Transactions on Circuits and Systems Ii-Analog and Digital Signal Processing

Volume

41

Issue/Number

6

Publication Date

1-1-1994

Document Type

Letter

Language

English

First Page

431

Last Page

434

WOS Identifier

WOS:A1994NY86200012

ISSN

1057-7130

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