Removing multiple scattering and twin images from holographic images.

Properly phased combinations of images reconstructed from holograms recorded at several wave numbers suppress interobject multiple scattering, self-interference, and the troublesome holographic twin image. When applied to point-source electron holographies, this solves the long-standing problem of electron multiple scattering confusing the determination of surface structure; when applied to in-line holograms of any kind it solves the classical problem of twin images which dates from the original work of D. Gabor.