1gdalcompare(1)              General Commands Manual             gdalcompare(1)
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NAME

6       gdalcompareCompare two images.
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SYNOPSIS

9       gdalcompare.py [-sds] golden_file new_file
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DESCRIPTION

12       The gdalcompare.py script compares two GDAL supported datasets and
13       reports the differences. In addition to reporting differences to the
14       standard out the script will also return the difference count in it's
15       exit value.
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17       Image pixels, and various metadata are checked. There is also a byte by
18       byte comparison done which will count as one difference. So if it is
19       only important that the GDAL visible data is identical a difference
20       count of 1 (the binary difference) should be considered acceptable.
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22       -sds:
23           If this flag is passed the script will compare all subdatasets that
24           are part of the dataset, otherwise subdatasets are ignored.
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26       golden_file:
27           The file that is considered correct, referred to as the golden
28           file.
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30       new_file:
31           The file being compared to the golden file, referred to as the new
32           file.
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34       Note that the gdalcompare.py script can also be called as a library
35       from python code though it is not typically in the python path for
36       including. The primary entry point is gdalcompare.compare() which takes
37       a golden gdal.Dataset and a new gdal.Dataset as arguments and returns a
38       difference count (excluding the binary comparison). The
39       gdalcompare.compare_sds() entry point can be used to compare
40       subdatasets.
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AUTHORS

43       Frank Warmerdam warmerdam@pobox.com
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47GDAL                            Mon Feb 11 2019                 gdalcompare(1)