title: FORTRAN algorithms for evaluating Fourier transforms of line spread functions.
abstract: FORTRAN IV algorithms are presented for calculating the modulation transfer function, the phase transfer function, the modulation transfer function area, an information transfer function, and the optimum frequency response as well as plotting the curves for these matrices. An important feature of the programs is an editing routine.
mesh_terms: D003201:Computers; D005583:Fourier Analysis; D011877:Radionuclide Imaging / Q000379:methods*; D012984:Software