一种消除光照影响的舰船跑道区域增强方法  

Image enhancement method to eliminate illumination influence on runway area on ship

作　　者：张坤[1] 周东翔[1] 彭科举[1] 樊玮虹[1] 蔡宣平[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《现代电子技术》2014年第21期31-34,共4页Modern Electronics Technique

摘　　要：光照过强或者过弱都会对舰船跑道直线提取造成严重影响,导致跑道直线提取不完全甚至失败。针对上述情况,提出了一种图像处理算法来消除光照带来的影响同时增强跑道直线的算法。首先将图像灰度均值恢复到光照合适时的水平,然后用一种线性灰度变换算法增大图像的动态范围和对比度,并且根据图像质量改善情况的反馈对这两步多次迭代,直至得到较好的图像跑道增强效果。仿真实验证明该算法较好地消除了光照变化带来的不利影响,并实现了增强舰船跑道线的目的。Illumination can have a significant impact on the appearance of ships’ surfaces,which may lead the incompleteness or even failure in the extraction of the runway. For the above reason,an image processing method for enhancing images of the runway and eliminating illumination influence is proposed. At first,the gray mean value of the image is recovered to the normal level. Then,the dynamic range and contrast of the image are increased with a linear gradation transformation algorithm,and the repeated iteration are made for these two steps according to the feedback of the improved image quality to achieve better results. The simulation results show that the algorithm performs well under variable conditions of illumination,and the purpose of enhancing the runway lines is reached.

关 键 词：光照影响消除 图像处理 线性灰度变换算法 舰船跑道 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP391.41[自动化与计算机技术—控制科学与工程]