图像点运算在图像灰度变换中的应用与实现  

On Image Point Operation in Gradation of Image and its Application

作　　者：张红梅[1] 张智高[2] 裴志利[1] 

机构地区：[1]内蒙古民族大学计算机科学与技术学院,内蒙古通辽028043 [2]内蒙古民族大学数学学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2012年第6期643-645,共3页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：国家自然科学基金资助项目(61163034);科技部"十一五"国家科技支撑计划项目(2009BH41B03);内蒙古自治区人才基金

摘　　要：灰度变换是数字图像处理中一种常见的图像增强技术,它可以实现诸如扩展图像的对比度、拉伸对比度、灰度级分层、图像反转等操作,从而使图像对比度扩展、清晰、特征更加明显.图像点运算是实现灰度变换的常用方法,按照变换函数的不同,点运算可以分为线性和非线性两种.本文总结常见的点运算形式分析其适合应用的情况,并采用matlab软件编程仿真实验,给出实验结论.Gradation of images is usually involved in digital image processing as a commonly used image enhancement technique. It can facilitate operations such as strengthening and stretching image contrast, layering gray levels, and in- versing pictures so as to highlight image characters and image contrast. Image point operation is a preferable method to transform grey level of images and with various transformation functions, image point operation can be categorized linear functions and non-linear ones. The article sums up circumstances where common point operations are applied and conducts simulation experiment by using matlab software before it provides results of the experiment.

关 键 词：灰度变换 图像点运算 MATLAB 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]