Aiming at the characteristics of infrared and visible images a novel fusion algorithm is proposed.Firstly the infrared image target region is extracted by using an improved region growing algorithm and is mapped to the visible image for local information fusion.Then the obtained fusion image is fused with the original infrared image by using a wavelet transform method based on edge enhancement to generate the final fusion image.Experimental results show that the fused image obtained by the proposed algorithm can highlight the infrared image target and reserve the clear background with good visual effects.