摘要
多小波以其具有正交性、对称性、短支撑和较大的消失矩等多个良好特性弥补了单小波的不足。在介绍多小波理论的基础上,提出一种新的图像压缩方法。该方法以CL多小波为基础,结合SPIHT图像压缩算法,对多小波系数进行压缩处理。采用Matlab 6.5进行实验,实验结果表明,经该算法压缩后的图像,其质量优于一般小波变换的传统方法。
Multi- wavelet has many good chatacters such as orthogonality, short support, more vanishing moments, which makes up for the shortcoming of scalar wavelet. Based on introducing multi - wavelet,a new image compression method is proposed,which based on CL multi - wavelet, adopting the SPIHT, carrying on compression on the coefficient of multiwavelet. Simulated by Matlab 6.5 ,experimental results indicate that the quality of image is better than traditional method.
出处
《现代电子技术》
2009年第12期73-75,共3页
Modern Electronics Technique
关键词
小波变换
多小波
SPIHT
图像压缩
wavelet transform
multi - wavelet
SPIHT
image compression
