一种新颖的退化图像复原算法。结合最大差值先验假设和最大局部对比度先验假设，快速有效的得到退化图像的深度转换估计图。结合软抠图法和shades of the gray算法实现图像去雾和水下图像处理。-A novel degraded image restoration algorithm. Combined with maximum difference between a priori assumptions and maximum local contrast priori hypothese