A simple method of contrast enhancement and extremum extraction for interference fringes

被引：19

作者：

Cai, LZ ^{[1
]}

Liu, Q ^{[1
]}

Yang, XL ^{[1
]}

机构：

[1] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2003年 / 35卷 / 04期

基金：

中国国家自然科学基金;

关键词：

digital image processing; contrast enhancement; extremum extraction; interference fringe analysis;

D O I：

10.1016/S0030-3992(03)00022-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method of interference fringe processing by finding the average and the extremum gray levels of image points within a fixed or varying window and then computing the modified image intensity with a simple algorithm is proposed. This method can yield a uniform brightness and high (1 or near to 1) contrast at the same time over the whole image area for an input pattern with low contrast and considerable luminance variation, when a relatively large window is used. It can also perform extremum extraction if a small window is employed. This technique is simple, effective and convenient for use, as has been verified by a series of examples of simulated and experimental fringe processing. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：295 / 302

页数：8

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