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--- jvs:fscan:manual:chapter2:expression:bandpass [2011/09/18 21:28]
voyvodic
+++ jvs:fscan:manual:chapter2:expression:bandpass [2023/02/23 18:43]
@@ Line 1: / Line 1: @@
-**fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): Bandpass**
-===== Bandpass -- Apply a bandpass frequency filter to input data =====
- **usage:  -expr bandpass flag minval maxval scalefact**\\
-The BANDPASS function will filter out both low and high frequency signals.
-Frequencies are typically expressed as wavelengths in seconds
-MINFREQ and above MAXFREQ.
-If MINFREQ is greater than MAXFREQ, then BANDPASS acts as a notch filter to remove frequencies between MAXFREQ and MINFREQ.
-SCALEFACT is a scaling factor; output intensity values will be divided by SCALEFACT. Default SCALEFACT is 1000.
-The FLAG argument can be used to select filtering options.
-FLAG:
-  * 1 - frequencies are in time axis units (i.e. TR's) (default: frequencies are Hertz)
-  * 2 - 2-d spatial filtering (default is temporal filtering) [not implemented yet]
-  * 4 - make output wordsize same as input (default: output is FLOAT32)
-**See Also:**\\
-[[jvs:fscan|fScan Home]],
-[[jvs:fscan:manual|fScan Manual]],
-[[jvs:fscan:manual:chapter2|CmdLineOptions]],
-[[jvs:fscan:manual:chapter2:expression|Expression Command]],
-[[jvs:fscan:manual:help|Manual Help]]

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