Color Cast Correction of Color Image Based on Improved Frankle-McCann Retinex
A color cast correction algorithm based on improved Frankle-McCann Retinex is proposed to correct images which are influenced by illumination. To improve on the original algorithm, the distance-weighting factor with Gauss function is introduced, and a linear stretch with the mean and the standard deviation is carried out. Experimental results demonstrate that the algorithm in this paper has improved correction effect on the color cast image.