基于改进ILAE算法的图像局部自适应增强研究

ON IMAGE LOCAL ADAPTIVE ENHANCEMENT ALGORITHM BASED ON IMPROVED ILAE ALGORITHM

一些应用需要增强一幅图像的局部信息,而不改变图像的其它部分。为此,提出了图像局部自适应增强算法。采用改进的ILAE算法,根据局部统计信息找出一幅图像中所要增强的像素点,仅对这些像素点进行图像增强,然后利用自适应中值滤波方法对增强后的图像进行去噪。实验结果表明,经算法处理后的图像,不仅局部信息得到了增强而且还能取得很好的视觉效果。

Some of the applications require enhancing local information of an image while leaving other parts unchanged.Therefore,in this paper we propose an algorithm of image local adaptive enhancement.An algorithm of improved ILAE is adopted in the paper,the target pixels which need to be enhanced in a image are found according to local statistical information,and only these pixels are conducted the image enhancement,after that the noises of the enhanced image are removed using the method of adaptive median filter.Experimental results suggest that after processing with the algorithm in the paper,the local information of the image has been enhanced and a better visual effect has been achieved as well.