An adaptive image fusion method based on nonsubsampled contourlet transform and simplified PCNN is proposed in this paper.As the pulse coupled neural network is complexity,the algorithm improves a simplified PCNN model.First,the source images are decomposed through nonsubsampled contourlet transform,and then uses the local energy as the simplified pulse coupled neural network input links,it solution the problem of manual adjustment of parameters,and then uses PCNN to identify high-frequency by characteristi...