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Figure 3
(a) A small 4 × 4 pixel image. (b) Moduli of the Fourier coefficients of Fig. 3[link](a); symmetry is visible around (h, k) = (0, 0). (c) Phases of the Fourier coefficients of Fig. 3[link](a); antisymmetry is visible around (h, k) = (0, 0). Maximum (minimum) values of moduli and phases are white (black).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 40| Part 6| November 2007| Pages 1153-1165
doi:10.1107/S0021889807043622
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