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A Wavelet Based Approach for Near-Lossless Image Compression Using Logarithmic Transformation.

A Wavelet Based Approach for Near-Lossless Image Compression Using Logarithmic Transformation.

Authors :
Cyriac, Marykutty
C., Chellamuthu
Source :
International Review on Computers & Software; Jun2013, Vol. 8 Issue 6, p1334-1340, 7p
Publication Year :
2013

Abstract

Wavelet based near-lossless compression techniques are limited in the literature. In this paper, a new approach for the near-lossless compression of images based on the wavelet transform is presented. Initially, the source image is pre-processed using a logarithmic transformation technique to generate a near-lossless image. The logarithmic transformation stage is followed by a second generation wavelet coding and a Huffman entropy coding. Inverse techniques are applied to get the decompressed image. Objective quality parameters are used to analyze the performance of the proposed method and the results are compared with those of the other near-lossless coders like the JPEG-LS and CALIC. The proposed method outperforms these near-lossless image coders, in terms of the PSNR at all error levels. The bit rates obtained are also comparable. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18286003
Volume :
8
Issue :
6
Database :
Complementary Index
Journal :
International Review on Computers & Software
Publication Type :
Academic Journal
Accession number :
93287876