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
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 -- 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.

AUTHOR

Frank Warmerdam <warmerdam@pobox.com>

COPYRIGHT

1998-2025

January 8, 2025 GDAL_FILLNODATA(1)