Title of article :
A Survey on Palette Reordering Methods for Improving the Compression of Color-Indexed Images
Author/Authors :
A. J. Pinho and A. J. R. Neves، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
Palette reordering is a well-known and very effective approach for improving the compression of color-indexed images. In this paper, we provide a survey of palette reordering methods, and we give experimental results comparing the ability of seven of them in improving the compression efficiency of JPEG-LS and lossless JPEG 2000. We concluded that the pairwise merging heuristic proposed by Memon et al. is the most effective, but also the most computationally demanding. Moreover, we found that the second most effective method is a modified version of Zengʹs reordering technique, which was 3%-5% worse than pairwise merging, but much faster.
Journal title :
IEEE TRANSACTIONS ON IMAGE PROCESSING
Journal title :
IEEE TRANSACTIONS ON IMAGE PROCESSING