Image Enhancement Using Bright Channel Prior

In view of the low illumination color images, image enhancement technology is commonly used in image processing. In this study, we propose a brightness enhancement algorithm based on the bright channel prior, which focuses on the gray removal. The local patches in sufficient illumination images contain some pixels that have very high intensities in at least one color channel. Using this prior with haze imaging model, image enhancement can be achieved. The experimental results showed that the algorithm had good visual effect in image enhancement.