GDALCOMPARE(1) GDAL GDALCOMPARE(1)
NAME
gdalcompare - Compare two images.
SYNOPSIS
gdalcompare.py [-sds] golden_file new_file
DESCRIPTION
The gdalcompare.py script compares two GDAL supported datasets and re-
ports the differences. In addition to reporting differences to the
standard output the script will also return the difference count in its
exit value.
Image pixels, and various metadata are checked. There is also a byte by
byte comparison done which will count as one difference. So if it is
only important that the GDAL visible data is identical a difference
count of 1 (the binary difference) should be considered acceptable.
-sds If this flag is passed the script will compare all subdatasets
that are part of the dataset, otherwise subdatasets are ignored.
<golden_file>
The file that is considered correct, referred to as the golden
file.
<new_file>
The file being compared to the golden file, referred to as the
new file.
Note that the gdalcompare.py script (like all the other scripts) can
also be called as a library from python code: from osgeo_utils import
gdalcompare. The primary entry point is gdalcompare.compare() which
takes a golden gdal.Dataset and a new gdal.Dataset as arguments and re-
turns a difference count (excluding the binary comparison). The gdal-
compare.compare_sds() entry point can be used to compare subdatasets.
AUTHOR
Frank Warmerdam <warmerdam@pobox.com>
COPYRIGHT
1998-2021
Dec 27, 2021 GDALCOMPARE(1)
Generated by dwww version 1.14 on Fri Jan 24 06:24:31 CET 2025.