(9,7)小波变换的MMX实现方法  

(9,7) wavelet transform implementation based on Intel MMX technology

作　　者：马伍新[1] 崔占忠[1] 

机构地区：[1]北京理工大学,北京100081

出　　处：《计算机工程与设计》2002年第9期74-76,共3页Computer Engineering and Design

摘　　要：在图像压缩算法中,人们经常采用小波变换方法对图像数据进行变换处理,（9,7）小波是经常采用的,由于（9,7）小波运算是浮点运算,用传统的C语言编程来运行（9,7）小波变换。运算速度是不能令人满意的,为了尽可能块的实现小波变换,文中提出用MMX技术将浮点数变成整数运算来实现小波变换的实现方法,它比C语言实现速度快很多。Wavelet transform is usually used in a variety of applications, including image compression, (9,7) wavelet filter coefficients is floating point data.we used to accomplish (9,7) wavelet transform by C language, but wavelet transform speed is affected because of today's microprocessors. In order to advance wavelet transform operation speed, this paper gives a solution, that is using MMX technology to complete (9,7) wavelet transform. This approach is faster than C language program.

关 键 词：(9 7)小波变换 MMX C语言 程序设计 图像压缩算法 图像处理 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论] TP391.41[自动化与计算机技术—计算机科学与技术]