## Computer Techniques for Image Processing in Electron Microscopy |

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### Contents

The Discrete Fourier Transform | 34 |

Analytic Images | 44 |

Uniqueness | 78 |

Copyright | |

7 other sections not shown

### Common terms and phrases

alignment aperture array astigmatism atoms averaging beam bright-field calculation conjugate convergence convolution correlation correlation function cross-correlation cycles defocus diffraction pattern diffraction plane diffraction plane wave disc discrete Fourier transform discrete transform electron equation evaluated filter finite FORMAT Fortran Fourier plane Fourier transform given Hilbert transform image intensity image phase image wave function integral inverse transform involves iteration lattice limit linear macro MCDEF MCGO MCSET micrographs microscopy noise level nonzero normal obtained one-dimensional optical pair Parseval's theorem peak periodic functions phase distribution phase estimate phase shift phase solution plane modulus plane wave function possible problem processor random real axis reconstruction resolution restricted result routines sampling scattering Section signal spatial specimen spherical aberration stationary phase approximation steepest descent steepest descent method storage subroutine symmetric transfer function two-dimensional values vanishes weak objects width zeros