Research on the image haze-removal algorithm based on the prior dark-channel
Hong Wang · Journal of Optoelectronics·laser · 2011
In this paper we propose a fast and effective method to process the haze degraded image based on prior dark-channel and the physical model of hazy image in order to reduce the bad effect in the outdoor visibility system especially the aerial visibility imaging system in foggy days.The method optimizes and improves the original dark-channel prior algorithm which combines the characteristics of the aerial images.Using this method,we can recover a high quality hazefree image.The experiments of processing many outdoor foggy images have been conducted,and the results demonstrate that it can efficiently remove the haze from the physical character of the haze,increase the definition of haze-degraded images,enhance the details and color,and recover high quality haze-free images.The test of project indicates that it can improve the visibility of the aerial imaging system and reduce the bad weather effect on the aerial imaging and measurement.