A Novel Enhancement Algorithm for Night Image by Adjusting the Background

In this paper, a novel approach for night image enhancement is proposed. The algorithm improves the visuality of the night image by adjusting the background data of the value component (V) in HSV space. We firstly obtain background image from V, then increase the dynamic range of the background image by optimized transfer function. Finally, we can restore the enhancement V from enhanced background image. The experimental results demonstrate that the proposed approach can improve the perceptual quality, and have a good effect for night image by comparing with other algorithms.