Non-uniform Quantization of Detail Components in Wavelet Transformed Image for Lossy JPEG2000 Compression
@inproceedings{Srivastava2012NonuniformQO,
title={Non-uniform Quantization of Detail Components in Wavelet Transformed Image for Lossy JPEG2000 Compression},
author={Madhur Srivastava and Prasanta K. Panigrahi},
booktitle={International Conference on Pattern Recognition Applications and Methods},
year={2012}
}The paper introduces the idea of non-uniform quantization in the detail components of wavelet transformed image. It argues that most of the coefficients of horizontal, vertical and diagonal components lie near to zeros and the coefficients representing large differences are few at the extreme ends of histogram. Therefore, this paper advocates need for variable step size quantization scheme which preserves the edge information at the edge of histogram and removes redundancy with the minimal…
3 Citations
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