an adaptive fusion method of multi-focus images based on regional features in wavelet domain is proposed. First
images involved in fusion are decomposed by wavelet transform. For the fusion of low frequency coefficient
it adds different feature to the result image based on reserving the common feature of fusing images. High frequency coefficient is fused according to the wavelet energy of its region. Finally
the fused image is reconstructed. This method can not only fuse multi-focus images adaptively
but also have versatility in multi-focus images. The results show that this algorithm has good fusion effects
so it is an effective method in multi-focus images fusion.