NAME
gpiv_aint - Calculates mean image intensity at each interrogation area.
SYNOPSIS
gpiv_aint [-h | --help] [-p | --print] [-s | --second] [-V | --verbose]
[-v | --version] filename
DESCRIPTION
For each Interrogation Area of an image, gpiv_aint calculates the mean
image intensity. Depending on the settings of the interrogation scheme,
the Interrogation Area’s may be shifted with magnitude of the piv
estimators (if they exist) or the image may be deformed before the
intensity is calculated.
This program uses the IMG, PIV and POST parameters. The default
settings may be overruled by the command line options, as explained
below.
Options
-h | --help
On-line help.
-p | --print
Prints parameters to stdout.
-s | --second
Calculates the image intensitites for the second image frame in
case of double-frame image pairs.
-V | --verbose
Prints data of interrogation area’s and resulting mean.
-v | --version
Print version information on standard output, then exit
successfully.
filename
Full name of the image file. Image format might be: png, raw
binary (.r), hdf5 (.hdf), gif, tif, bmp or pgm. The piv
estimators are read from filename.piv The settings are written
to filename.par. output will be stored in filename.ain.
SEE ALSO
gpivtools
NOTES
The program uses netpbm.
AUTHOR
Gerber Van der Graaf
7 November 2006