| 基于双伸缩因子映射的小波分形图像压缩编码方法 |
| |
| 引用本文： | 惠存阳. 基于双伸缩因子映射的小波分形图像压缩编码方法[J]. 工程数学学报, 2011, 28(2): 150-156 |
| |
| 作者姓名： | 惠存阳 |
| |
| 作者单位： | 西安文理学院数学系; |
| |
| 摘 要： | 本文基于小波变换研究了分形图像压缩系统.根据小波系数的能量分布特性,给出了新的小波树定义与分类方法,并在小波域内建立了具有双伸缩因子的压缩映射.在将新的压缩映射应用于图像编码过程时,结合小波嵌入式零树编码思想给出了新的小波分形图像压缩方法.数值实验给出了本文方法与已有方法的比较.
|
| 关 键 词： | 分形图像编码 伸缩因子 小波 压缩映射 |
Wavelet Fractal Image Compression Based on Mapping with Dual Scale Factors |
| |
| HUI Cun-yang. Wavelet Fractal Image Compression Based on Mapping with Dual Scale Factors[J]. Chinese Journal of Engineering Mathematics, 2011, 28(2): 150-156 |
| |
| Authors: | HUI Cun-yang |
| |
| Affiliation: | HUI Cun-yang (Department of Mathematics,Xi'an University of Arts and Science,Xi'an 710065) |
| |
| Abstract: | The paper considers the fractal image compression system based on the wavelet transform.By the energy distribution of wavelet coefficients for images,we give a new kind of classification methods for wavelet trees and establish a compression mapping with two scale factors which is used for image coding.Using the idea of the embedded image coding using zero-trees of wavelet coefficients,a new wavelet fractal image compression method is proposed.Several numerical experiments are conducted and compared with exi... |
| |
| Keywords: | fractal image compression scale factors wavelet compression mapping |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
