1GDAL_CALC(1)                         GDAL                         GDAL_CALC(1)
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NAME

6       gdal_calc - Command line raster calculator with numpy syntax.
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SYNOPSIS

9          gdal_calc.py --calc=expression --outfile=out_filename [-A filename]
10                       [--A_band=n] [-B...-Z filename] [other_options]
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12       DESCRIPTION
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14       Command  line raster calculator with numpy syntax. Use any basic arith‐
15       metic supported by numpy arrays such as +, -, *, and \ along with logi‐
16       cal  operators such as >. Note that all files must have the same dimen‐
17       sions, but no projection checking is performed.
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19       --help Show this help message and exit
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21       -h     The same as --help.
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23       --calc=expression
24              Calculation in gdalnumeric syntax using +, -, /, *, or any numpy
25              array functions (i.e. log10()).
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27       -A <filename>
28              Input gdal raster file, you can use any letter (A-Z).
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30       --A_band=<n>
31              Number of raster band for file A (default 1).
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33       --outfile=<filename>
34              Output file to generate or fill.
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36       --NoDataValue=<value>
37              Output nodata value (default datatype specific value).
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39       --type=<datatype>
40              Output  datatype, must be one of [Int32, Int16, Float64, UInt16,
41              Byte, UInt32, Float32].
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43       --format=<gdal_format>
44              GDAL format for output file.
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46       --creation-option=<option>
47              Passes a creation option to the output format driver.   Multiple
48              options  may  be  listed.  See format specific documentation for
49              legal creation options for each format.
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51       --co=<option>
52              The same as creation-option.
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54       --allBands=[A-Z]
55              Process all bands of given raster (A-Z).
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57       --overwrite
58              Overwrite output file if it already exists.
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60       --debug
61              Print debugging information.
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63       --quiet
64              Suppress progress messages.
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EXAMPLE

67       Add two files together:
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69          gdal_calc.py -A input1.tif -B input2.tif --outfile=result.tif --calc="A+B"
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71       Average of two layers:
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73          gdal_calc.py -A input.tif -B input2.tif --outfile=result.tif --calc="(A+B)/2"
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75       Set values of zero and below to null:
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77          gdal_calc.py -A input.tif --outfile=result.tif --calc="A*(A>0)" --NoDataValue=0
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AUTHOR

80       Chris Yesson <chris dot yesson at ioz dot ac dot uk>, Etienne  Tourigny
81       <etourigny dot dev at gmail dot com>
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84       1998-2021
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89                                 Jan 05, 2021                     GDAL_CALC(1)
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