【摘要】 为满足有效性和处理速度的要求,结合暗原色先验的参数估计,将用于模糊处理的近似点扩展函数估计(APEX)用于天气退化图像复原。考虑到不同天气条件下、不同大小的图像其APEX参数不一致,算法能够针对不同浓度的沙尘、雾动态调整估计参数;而且与大多数多幅图像输入的复原方法不同,算法针对单幅图像进行处理。仿真结果表明算法具有很好的实用性。为进一步改善视觉效果,基于颜色恒常性能够均衡图像中光源颜色分量不均匀造成的影响,对复原图像进行了颜色恒常性处理。更多还原

【Abstract】 In order to meet the demands for both availability and processing speed,in reference to dark channel prior estimation,an image restoration algorithm based on Approximate Point Spread Function Examining(APEX) algorithm commonly used in image deblurring was proposed.Meanwhile,because different-sized images under different weather conditions have different APEX parameters,the APEX parameter value was adjusted dynamically according to sandstorm and fog degree.Furthermore,unlike other multiple images methods,the proposed algorithm needs only one image to be the input.The experimental results show that the proposed algorithm is effective in restoring images.By using color constancy algorithm,the source color components were balanced;furthermore,the visual effect of images was enhanced.更多还原