gdal_calc (1)
NAME
gdal_calc - Command 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 (default 'GTiff')
--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>