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GDAL-RASTER-FILL-NODATA(1) GDAL GDAL-RASTER-FILL-NODATA(1) NAME gdal-raster-fill-nodata - Fill nodata values in a raster dataset Added in version 3.11. SYNOPSIS Usage: gdal raster fill-nodata [OPTIONS] <INPUT> <OUTPUT> Fill nodata raster regions by interpolation from edges. Positional arguments: -i, --input <INPUT> Input raster dataset [required] -o, --output <OUTPUT> Output raster dataset (created by algorithm) [required] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config <KEY>=<VALUE> Configuration option [may be repeated] --progress Display progress bar Options: -f, --of, --format, --output-format <OUTPUT-FORMAT> Output format --co, --creation-option <KEY>=<VALUE> Creation option [may be repeated] --overwrite Whether overwriting existing output is allowed -b, --band <BAND> Input band (1-based index) (default: 1) -d, --max-distance <MAX_DISTANCE> The maximum distance (in pixels) that the algorithm will search out for values to interpolate. (default: 100) -s, --smoothing-iterations <SMOOTHING_ITERATIONS> The number of 3x3 average filter smoothing iterations to run after the interpolation to dampen artifacts. The default is zero smoothing iterations. (default: 0) --mask <MASK> Use the first band of the specified file as a validity mask (zero is invalid, non-zero is valid). --strategy <STRATEGY> By default, pixels are interpolated using an inverse distance weighting (invdist). It is also possible to choose a nearest neighbour (nearest) strategy.. STRATEGY=invdist|nearest (default: invdist) Advanced Options: --if, --input-format <INPUT-FORMAT> Input formats [may be repeated] DESCRIPTION gdal raster fill-nodata fills nodata areas by interpolating from valid pix- els around the edges of the area. The following options are available: -f, --of, --format, --output-format <OUTPUT-FORMAT> Which output raster format to use. Allowed values may be given by gdal --formats | grep raster | grep + | sort --output-layer <OUTPUT-LAYER> Output layer name. --overwrite Allow program to overwrite existing target file or dataset. Other- wise, by default, gdal errors out if the target file or dataset al- ready exists. -b <BAND> Select an input <BAND> to be processed. Bands are numbered from 1. Default is the first band of the input dataset. -max-distance <MAX_DISTANCE> Specifies the maximum distance (in pixels) that the algorithm will search out for values to interpolate. Default is 100 pixels. --smoothing-iterations <SMOOTHING_ITERATIONS> Specifies the number of smoothing iterations to apply to the filled raster. This can help to reduce artifacts in the filled areas. De- fault is 0 iterations. --strategy <STRATEGY> Select the interpolation <STRATEGY> to use. By default, pixels are interpolated using an inverse distance weighting (invdist). It is also possible to choose a nearest neighbour (nearest) strategy. --mask <MASK> Use the first band of the specified file as a validity mask (zero is invalid, non-zero is valid). EXAMPLES Example 1: Fill nodata areas in a raster The command specifies to use the second band of the input raster, 50 px max distance, 3 smoothing iterations and the nearest strategy for interpola- tion. The output will be saved in output.tif. gdal raster fill-nodata -b 2 --max-distance 50 --smoothing-iterations 3 \ --strategy nearest --mask mask.tif \ input.tif output.tif AUTHOR Alessandro Pasotti <elpaso@itopen.it> COPYRIGHT 1998-2025 Oct 29, 2025 GDAL-RASTER-FILL-NODATA(1)
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