gdal_fillnodata - Fill raster regions by interpolation from edges.

       Frank Warmerdam <warmerdam@pobox.com>

       1998-2025

                                                  Feb 11, 2025                                GDAL_FILLNODATA(1)

gdal_fillnodata  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.

       NOTE:
          gdal_fillnodata is a Python utility, and is only available if GDAL Python bindings are available.

       --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--GeoTIFFFileFormat.  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.

       gdal_fillnodata - Fill raster regions by interpolation from edges.

          gdal_fillnodata [--help] [--help-general] [-q] [-md <max_distance>]
                     [-si <smoothing_iterations>] [-o <name>=<value> [<name>=<value> ...]]
                     [-mask <filename>] [-interp {inv_dist,nearest}] [-b <band>]
                     [-of <gdal_format>] [-co <name>=<value>]
                     <src_file> <dst_file>