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)