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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.
- 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