摘要
提出了一种利用Ｈａａｒ小波进行图像无失真压缩的算法。对线性预测后的图像进行Ｈａａｒ小波分解，将各子带小波系数根据大小分解成两部分，其位置信息分别通过自适应算术编码进行了有效的压缩。试验结果表明，该算法实现简单，达到了很好的压缩效果。
This paper presents a new algorithm that utilizes wavelet for lossless compression. Based on linear prediction and Haar multiresolution representation, the wavelet coefficients are divided into two parts according to their values. Those two parts and the location information of decomposing will be compressed effectively by arithmetic coding respectively. Experimental results show that the new algorithm is very practical especially for lossless compression.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2000年第5期475-478,共4页
Journal of University of Electronic Science and Technology of China
基金
电子部预研基金
关键词
无失真编码
HAAR小波
图像压缩
小波变换
lossless compression
Haar multiresolution representation
linear prediction
adaptive arithmetic coding
