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                             GPIV_AINT(1)