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jvs:fscan:manual:chapter2:expression:fft
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fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): fft
fft -- Perform a fast Fourier transform
usage: -expr fft flag [wdsiz]
The FFT expression performs a fast Fourier transform (FFT) on an entire data set. The FLAG argument controls options as:
FLAG:
- 1 - 1-dimensional FFT
- 2 - 2-dimensional FFT
- 4 - frequency space to image space (default: image to frequency)
- 8 - magnitude only
- 16 - phase only
- 32 - magnitude and phase are highest dimension (default: lowest dimension)
See Also:
fScan Home,
fScan Manual,
CmdLineOptions,
Expression Command,
Manual Help
jvs/fscan/manual/chapter2/expression/fft.1316292569.txt.gz · Last modified: 2014/08/04 16:03 (external edit)
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