1、 陕西理工学院毕业设计 I 二维图像压缩编码方法的研究 摘要 本毕业设计是对图像处理压缩编码的现状与发展,以及图像压缩编码的原理和各种压缩算法进行研究,在 Matlab 软件下,使用小波变换中的 Mallat 算法对二维图像进行了 3 层分解与重构,并且,在小波分解的基础上,对二维图像采用去掉高频保留低频的方法进行了图像压缩,其次,还在 matlab 中采用无损压缩中的 Huffman编码对二维图像进行了压缩。 关键词 小波变换 ; 分解 ; 重构 ;压缩 ;编码 陕西理工学院毕业设计 II the study of two dimensional image compression codi
2、ng method Abstract: This graduation design study on the image compression coding of the status and development, as well as the image compression coding principle and various compression algorithm, in Matlab software, used the Mallat algorithm in wavelet transform to decompose and reconstruct the two
3、-dimensional images by 3 layer , then, in small wave based on decomposition, removed high frequency and retained low frequence to compress the two-dimensional images , thirdly, still in Matlab, used lossless compression of Huffman coding to compress the image. Key words: Wavelet Transform ;Decomposition ;reconstruction ;compression ; Coding;