A NEW LBG-BASED IMAGE COMPRESSION METHOD USING DCT

被引：0
作者：
Jiang Lai Huang Cailing Liao Huilian Ji Zhen (Faculty of Information Engineering
机构：
来源：
Journal of Electronics(China) | 2006年 / 05期
基金：
中国国家自然科学基金;
关键词：
Image compression; Vector Quantization (VQ); Discrete Cosine Transform (DCT); Codebook; Linde-Buzo-Gray (LBG);
D O I：
暂无
中图分类号：
TN911.73 [图像信号处理];
学科分类号：
0711 ; 080401 ; 080402 ;
摘要：
In this letter, a new Linde-Buzo-Gray (LBG)-based image compression method using Discrete Cosine Transform (DCT) and Vector Quantization (VQ) is proposed. A gray-level image is firstly decomposed into blocks, then each block is subsequently encoded by a 2D DCT coding scheme. The dimension of vectors as the input of a generalized VQ scheme is reduced. The time of encoding by a generalized VQ is reduced with the introduction of DCT process. The experimental results demonstrate the efficiency of the proposed method.
引用
收藏
页码：783 / 785
页数：3
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