Provided by: gdal-bin_3.6.2+dfsg-1build1_amd64 
NAME
gdal_sieve - Removes small raster polygons.
SYNOPSIS
gdal_sieve.py [-q] [-st threshold] [-4] [-8] [-o name=value]
srcfile [-nomask] [-mask filename] [-of format] [dstfile]
DESCRIPTION
gdal_sieve.py script removes raster polygons smaller than a provided threshold size (in
pixels) and replaces them with the pixel value of the largest neighbour polygon. The
result can be written back to the existing raster band, or copied into a new file.
The input dataset is read as integer data which means that floating point values are
rounded to integers. Re-scaling source data may be necessary in some cases (e.g. 32-bit
floating point data with min=0 and max=1).
Additional details on the algorithm are available in the GDALSieveFilter() docs.
AUTHOR
Frank Warmerdam <warmerdam@pobox.com>
COPYRIGHT
1998-2023
Jan 02, 2023 GDAL_SIEVE(1)