frandphase Phase Randomization of a Fimage
frandphase [-i] in out
-i : in order NOT to reinitialize the random seed
in : input Fimage
out : output Fimage
void frandphase (in , out , i_flag )
Fimage in , out ;
char *i_flag ;
This module performs a ``phase randomization'' on a Fimage, defined by
This operator can be viewed as a ``texturization'', since it is well-known that microscopic textures can be caracterized by their correlation function
The random seed used (drand48) is reinitialized with the current time unless the -i option is set.
NB: Calling this C-subroutine with out = in is possible
faxpb, fft2d, fmean, fvar.
Last Modification date : Thu Apr 10 15:34:47 2003