照度不均匀图像的快速自适应灰度修正  

Fast and adaptive gray-level correction of uneven illumination image

作　　者：杨杰[1] 付忠良[1] 阮波[1] 

机构地区：[1]中国科学院成都计算机应用研究所,四川成都610041

出　　处：《计算机应用》2005年第3期598-600,602,共4页journal of Computer Applications

摘　　要：针对实际应用中近距离成像产生的图像照度不均匀现象,从成像的光照模型出发,提出了一种具有自适应性的灰度修正方法,并与已有的灰度修正方法进行了对比分析。实验表明,该方法快速有效,并特别适用于基于高速图像处理的机器视觉系统。Imaging at close distance leads to uneven illumination images in practical application. Based on the illunination model, a new gray-level correction method with adaptability was proposed. Being analysed and compared with existent methods, this new method was proved fast and effective, and suitable to high-speed image process in machine vision systems.

关 键 词：近距 照度 灰度修正 不均匀 自适应 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]