A novel multi-scale Retinex method is proposed to improve traditional Multi-scale Retinex in this paper,mainly aiming to solve the problem of not being able to maintain the details and the color fidelity effectively,by adopting information fusion strategy based on wavelet transform domain to replace the linear weighted average.At first,the basic strategy of image fusion is taking four wavelet decomposition,then the high-frequency take absolute maximum to enhance the details and the low-frequency adopt the s...