UAV image defogging method based on improved Retinex algorithm
Aiming at the problems such as color distortion and poor defogging effect of the traditional Retinex de-fogging algorithm,this paper proposes an improved Retinex defogging method for UAV images.Firstly,the gray dis-tribution after Retinex logarithm calculation is counted.Secondly,the improved white balance algorithm is used to re-calculate the gray value.Finally,the color difference of the UAV image is corrected by combining the gray world and the perfect reflection algorithm.The experimental results show that the proposed algorithm reduces the color dis-tortion and makes the image more detailed.Compared with other algorithms,the evaluation index of the proposed al-gorithm is improved overall.It is an effective defogging algorithm for UAV images.