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fshrink2

$ \bigcirc$Name


fshrink2 Shrink a Fimage to dimensions power of two




$ \bigcirc$Command Synopsis


fshrink2 in out



in : input Fimage

out : shrinked Fimage




$ \bigcirc$Function Summary


void fshrink2 (in , out )

Fimage in , out ;




$ \bigcirc$Description


This module is required for the 2D Fast Fourier transform (fft2d). It extracts of an input image its largest centered part which dimensions are power of 2. For example, an original image of size 600×300 will be shrinked to size 512×256, by extracting the part [44, 555]×[22, 277].

NB: Calling this C-subroutine with out = in is nonsense.




$ \bigcirc$See Also


fft2d, fft2dview.


$ \bigcirc$Version 1.0


Last Modification date : Thu Nov 29 20:23:56 2001


$ \bigcirc$Author


Lionel Moisan






next up previous contents index
Next: fsym2 Up: Reference Previous: frandphase   Contents   Index
mw 2004-05-05