NAME

       gdal_fillnodata - Fill raster regions by interpolation from edges.

SYNOPSIS

          gdal_fillnodata.py [-q] [-md <max_distance>] [-si <smooth_iterations>]
                          [-o <name>=<value>] [-b <band>]
                          [-nomask] [-mask <filename>]
                          [-interp {inv_dist,nearest}]
                          [-of <format>]
                          <srcfile> [<dstfile>]

DESCRIPTION

       gdal_fillnodata.py  script fills selection regions (usually nodata areas) by interpolating
       from valid pixels around the edges of the area.

       Additional details on the algorithm are available in the GDALFillNodata() docs.

       --help Show this help message and exit

       --help-general
              Gives a brief usage message for the generic GDAL commandline options and exit.

       -q     The script runs in quiet mode. The  progress  monitor  is  suppressed  and  routine
              messages are not displayed.

       -md <max_distance>
              The  maximum  distance (in pixels) that the algorithm will search out for values to
              interpolate. The default is 100 pixels.

       -si <smooth_iterations>
              The  number  of  3x3  average  filter  smoothing  iterations  to  run   after   the
              interpolation to dampen artifacts. The default is zero smoothing iterations.

       -o <name>=<value>
              Specify a special argument to the algorithm. Currently none are supported.

       -b <band>
              The band to operate on, by default the first band is operated on.

       -mask <filename>
              Use  the  first  band  of  the  specified file as a validity mask (zero is invalid,
              non-zero is valid).

       -of <format>
              Select the output format. The default is GTiff -- GeoTIFF  File  Format.   Use  the
              short format name.

       -interp {inv_dist,nearest}
              New in version 3.9.

              By default, pixels are interpolated using an inverse distance weighting (inv_dist).
              It is also possible to choose a nearest neighbour (nearest) strategy.

       <srcfile>
              The source raster file used to identify target pixels.  Only one band is used.

       <dstfile>
              The new file to create with the interpolated result.  If not provided,  the  source
              band is updated in place.

AUTHOR

       Frank Warmerdam <warmerdam@pobox.com>

COPYRIGHT

       1998-2024

                                           Oct 07, 2024                        GDAL_FILLNODATA(1)