IMAGE-ENHANCEMENT BY HISTOGRAM HYPERBOLIZATION

被引：94

作者：

FREI, W ^{[1
]}

机构：

[1] UNIV SO CALIF,INST IMAGE PROC,DEPT ELECT ENGN,LOS ANGELES,CA 90007

来源：

COMPUTER GRAPHICS AND IMAGE PROCESSING | 1977年 / 6卷 / 03期

关键词：

MATHEMATICAL TRANSFORMATIONS;

D O I：

10.1016/S0146-664X(77)80030-0

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

A new image contrast enhancement technique, called histogram hyperbolization, is presented. It consists of a memoryless nonlinear, space-invarient transformation of the pixel brightness values. This transformation is based upon the histogram of the picture to be processed and the nature of human brightness perception. Examples show that this transformation yields images of increased intelligibility as compared to a similar and popular technique called histogram equalization. An application to spatial filtering is also presented and compared with homomorphic filtering.

引用

页码：286 / 294

页数：9