NAME

       gdal_calcCommand line raster calculator with numpy syntax.

SYNOPSIS

       gdal_calc.py --calc=expression --outfile=out_filename [-A filename]
                    [--A_band=n] [-B...-Z filename] [other_options]

       Options:
         -h, --help            show this help message and exit
         --calc=expression     calculation in gdalnumeric syntax using +-/* or any
                               numpy array functions (i.e. log10())
         -A filename           input gdal raster file, you can use any letter (A-Z)
         --A_band=n            number of raster band for file A (default 1)
         --outfile=filename    output file to generate or fill
         --NoDataValue=value   output nodata value (default datatype specific value)
         --type=datatype       output datatype, must be one of ['Int32', 'Int16',
                               'Float64', 'UInt16', 'Byte', 'UInt32', 'Float32']
         --format=gdal_format  GDAL format for output file
         --creation-option=option, --co=option
                               Passes a creation option to the output format driver.
                               Multiple options may be listed. See format specific
                               documentation for legal creation options for each
                               format.
         --allBands=[A-Z]      process all bands of given raster (A-Z)
         --overwrite           overwrite output file if it already exists
         --debug               print debugging information
         --quiet               suppress progress messages

DESCRIPTION

       Command line raster calculator with numpy syntax. Use any basic arithmetic supported by
       numpy arrays such as +-*\ along with logical operators such as >. Note that all files must
       have the same dimensions, but no projection checking is performed.

EXAMPLE

       add two files together

       gdal_calc.py -A input1.tif -B input2.tif --outfile=result.tif --calc="A+B"

       average of two layers

       gdal_calc.py -A input.tif -B input2.tif --outfile=result.tif --calc="(A+B)/2"

       set values of zero and below to null

       gdal_calc.py -A input.tif --outfile=result.tif --calc="A*(A>0)" --NoDataValue=0

AUTHORS

       Chris Yesson <chris dot yesson at ioz dot ac dot uk> Etienne Tourigny <etourigny dot dev
       at gmail dot com>