基于低能见度场景中退化图像的增强方法

Methods of Strengthening Degrade Image Based on Low Visibility Scene

研究了低能见度条件下的图像清晰化方法,在基于频率域与空间域的传统算法的基础上,提出了传统算法互相结合的新算法,包括POSHE算法、基于POSHE算法与传统算法相结合的算法、有限对比自适应直方图均衡化的算法、基于CLAHE算法和POSHE算法与传统算法相结合的算法。以上几种算法,都能对含沙尘的这类图像进行不同程度的增强,得到了较为满意的结果。

The paper was researched methods of image sharpening in condition of low visibility. Based on traditional algo- rithm of frequency domain and space domain, the paper was put forward new algorithm combined traditional algorithm, in- cluding POSHE algorithm, combining traditional algorithm based on POSHE, limited comparison adaptive histogram equaliza- tion algorithm and combining traditional algorithm based on CLAHE algorithm and POSHE algorithm. Above algorithms strengthened the kind of dust image in different degree and obtained approving results.