Abstract: In order to improve the visual effect of low illumination video, a hybrid algorithm was proposed, which included the Logarithmic Image Processing (LIP)-based enhancement algorithm and the improved bi-direction balancing algorithm. The number of processing frames was reduced by using the inter-frame cross-correlation to improve the processing speed. Experimental results show that the proposed algorithm can obtain more satisfactory results.

Key words: video enhancement, contrast enhancement, low illumination, cross-correlation

摘要： 为了提高低照度视频的视觉效果，提出一种基于对数图像处理（LIP）的增强算法和改进的双向均衡算法相结合的方法，并运用帧间互相关信息，在保证视觉效果的前提下，减少了处理的帧数，提高了处理的速度。实验结果表明，该方法简单、实用，能够得到较理想的效果。

关键词: 视频增强, 对比度增强, 低照度, 互相关