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jvs:fscan:manual:chapter2:expression:peak

fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): Peak

Peak -- find local maxima/minima

usage: -e peak minval flag

The PEAK command compares the intensity value of each voxel with the intensities of its 26 immediate neighbors. It results in a map image, in which each new voxel is a flag (see below).

FLAG:
1 - only local extreme values
2 - consider negative peaks as well
4 - save peak locs as ROI points

Return values (combined as bitflag):
1 - has lower neighbor (or higher if neg)
2 - has equal neighbor
4 - has higher neighbor (but not if FLAG&1)

See Also:
Gradient,
Segment,
Descend

fScan Home,
fScan Manual,
CmdLineOptions,
Expression Command,
Manual Help

jvs/fscan/manual/chapter2/expression/peak.txt · Last modified: 2015/01/30 19:39 by voyvodic