最大谱值定理与谱显示函数的改进  

Thorem of Spectral Maximum and Improvement in Displaying Function of Spectrum

作　　者：陈中轩[1] 

机构地区：[1]云南大学物理系

出　　处：《云南大学学报（自然科学版）》1992年第3期271-274,共4页Journal of Yunnan University(Natural Sciences Edition)

摘　　要：一般用对数函数显示图象的傅立叶谱;本文提出最大谱值定理,据此提出线性显示函数,指出线性显示函数相对于对数显示函数的优点,本文还分析了显示反转现象.A logarithm function is generally employed for displaying the Fourier Spectrum of an image. Pressented in this paper are a theorem of spectral maximum and, based on this theorem, a linear displaying function. The advantages of the linear displaying function over the logarithm displaying function are demonstrated. The appearance of the reversal displaying is also analysed.

关 键 词：最大谱值定理 显示函数 傅氏变换 

分 类 号：TN941.1[电子电信—信号与信息处理]