The low frequency of TM4 is fused with high frequency of TM5.Edge detection of the reservoir show the remote sensing fusion image of TM4 and TM5 is better than the one of TM4.

• 对图像通过TM4分解的低频图与TM5分解的高频图像融合再与TM4影像原图比较,融合图像提取细节效果明显优于TM4原图像。