@article{Saha2013Mutual,

  title={Mutual spectral residual approach for multifocus image fusion},

  author={Saha, Ashirbani and Bhatnagar, Gaurav and Wu, Q. M. Jonathan},

  journal={Digital Signal Processing},

  volume={23},

  number={4},

  pages={1121-1135},

  year={2013},

}