In the light of the background of the complex situation, the image acquired by the image has fuzziness and color difference, through the white balance deviation compensation, improve the imaging results. In the traditional method, the contour feature fusion method is used to compensate the white balance in the complex illumination. When the image pixel is lower, the color difference compensation is not good. A new method of white balance offset compensation based on wavelet packet decomposition is proposed. Firstly, the image of the complex illumination is collected and the image is described. The original image is processed by noise reduction. The color difference of the image is analyzed and extracted by wavelet packet decomposition method. The simulation results show that the image processing method is used to compensate for the White Balance errors, which can effectively balance the image color, improve the image of the image, the performance of the details of the image is more powerful, the peak signal noise is relatively high, and the performance is superior.