二维DCT的基图像及其绘制  

Basal Image and its Drawing Based on Two Dimensional DCT

作　　者：谭园园[1] 耿志[2] 李俊山[1] 薛菊[1] 

机构地区：[1]第二炮兵工程学院计算机系,陕西西安710025 [2]成都军区联勤部司令部,四川成都610061

出　　处：《现代电子技术》2005年第7期117-118,121,共3页Modern Electronics Technique

摘　　要：基图像是图像正交变换中比较重要的概念,但目前的文献对基图像的解释不够清楚,对基图像的绘制也没有 提及。以二维DCT为例对基图像的概念和意义进行了详细地阐述;分析、解释了基图像的绘制原理;提出了一种用Matlab 绘制二维DCT基图像的简便方法,该方法也适用于绘制其他正交变换的基图像。Basal image is an important conception on orthogonal transform. However, the interpretation of basal image is not clear, and the method of drawing is not mentioned presently. This paper based on two dimensional Discrete Cosine Transform (DCT) expounds the conception and significance of basal image in detail; analyses and interprets the principle of basal image drawing; synchronously, introduces a simple and convenient way to draw two dimensional Discrete Cosine Transform (DCT) or other basal image by Matlab.

关 键 词：离散余弦变换 基函数 基图像 MATLAB 

分 类 号：TN911.73[电子电信—通信与信息系统]