摘要
将小波变换系数的等级树集分割 (SPIHT)编码方法推广应用到彩色图像压缩中 ,分析了在红绿蓝 (RGB)三基色空间和亮度、色度 (YUV)空间进行编码压缩的效果 .理论分析和仿真实验表明 :无论从压缩比还是从解码图像质量来看 ,在YUV空间的压缩效率都比在RGB空间的高 ;与分形编码压缩效果相比 ,小波变换系数的等级树集分割编码方法优于分形编码方法 .
This paper extends the image coding method based on Set Partitioning in Hierarchical Trees (SPIHT) to color image coding, and analyzes the coding results of color images in RGB space and YUV space using SPIHT coding method. From the theoretical analyses and simulation results, it can be found that the compression rate and decoded image quality in YUV space is higher than that in RGB space. Compared with the fractal coding compression results, the coding method based on SPIHT is better than fractal coding method.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2000年第9期87-92,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
华南理工大学自然科学基金资助项目
关键词
小波变换
等级树集分割
彩色图像压缩
图像编码
color image
wavelet transform
image compression
set partitioning in hierarchical trees
