  Coherent diffraction imaging is a high-resolution imaging technique whose
potential can be greatly enhanced by applying the extrapolation method
presented here. We demonstrate enhancement in resolution of a non-periodical
object reconstructed from an experimental X-ray diffraction record which
contains about 10% missing information, including the pixels in the center of
the diffraction pattern. A diffraction pattern is extrapolated beyond the
detector area and as a result, the object is reconstructed at an enhanced
resolution and better agreement with experimental amplitudes is achieved. The
optimal parameters for the iterative routine and the limits of the
extrapolation procedure are discussed.
