gdal_fillnodata - Man Page

Fill raster regions by interpolation from edges.

Synopsis [-q] [-md max_distance] [-si smooth_iterations]
                [-o name=value] [-b band]
                srcfile [-nomask] [-mask filename] [-of format] [dstfile]

Description 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.


Show this help message and exit


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


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.


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

-mask filename

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


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

-of format

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


Frank Warmerdam <>


Feb 08, 2024 GDAL