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GDAL_FILLNODATA(1)		      GDAL		      GDAL_FILLNODATA(1)

NAME
     gdal_fillnodata - Fill raster regions by interpolation from edges.

SYNOPSIS
	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>

DESCRIPTION
     gdal_fillnodata  fills selection regions (usually nodata areas) by interpo-
     lating from valid pixels around the edges of the area.

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

     TIP:
	Equivalent in new "gdal" command line interface:

	See gdal raster fill-nodata.

     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 sup-
	    ported.

     -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 For-
	    mat.  Use the short format name.

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

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

RETURN STATUS CODE
     The program returns status code 0 in case of success, and non-zero in  case
     of  error (non-blocking errors emitted as warnings are considered as a suc-
     cessful execution).

AUTHOR
     Frank Warmerdam <warmerdam@pobox.com>

COPYRIGHT
     1998-2026

				  Jun 05, 2026		      GDAL_FILLNODATA(1)

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