SIP_FFTSHIFT

NAME
SYNOPSIS
PARAMETERS
DESCRIPTION
REMARKS
AUTHORS
AVAILABILITY
SEE ALSO

NAME

sip_fftshift - swap arrays (used with fft)

SYNOPSIS

Y = sip_fftshift(X)

PARAMETERS

X and Y
double vectors

DESCRIPTION

sip_fftshift(X) swaps the left and right halves of X.
sip_fftshift is a substitute for mtlb_fftshift, a Scilab function which is in FRACLAB contribution. We provide it here, since its necessary for many image processing tasks.

REMARKS

fftshift is now present in Scilab CVS. sip_fftshift is provided only for those versions of scilab that do not have fftshift.
There are optional arguments not documented, as well as other features of this function that we don't cover in this manpage.

AUTHORS

Ricardo Fabbri <rfabbri@if.sc.usp.br>, with help from Scilab Group <Scilab@inria.fr>

AVAILABILITY

The latest version of the Scilab Image Processing toolbox can be found at
http://siptoolbox.sourceforge.net

SEE ALSO

fft, FRACLAB toolbox