This is the command gdal_calc that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
gdal_calc - gdal_calc.py Command line raster calculator with numpy syntax
SYNOPSIS
gdal_calc.py [-A <filename>] [--A_band] [-B...-Z filename] [other_options]
Options:
-h, --help show this help message and exit
--calc=CALC calculation in gdalnumeric syntax using +-/* or any
numpy array functions (i.e. logical_and())
-A A input gdal raster file, note you can use any letter
A-Z
--A_band=A_BAND number of raster band for file A (default 0)
--outfile=OUTF output file to generate or fill
--NoDataValue=NODATAVALUE
set output nodata value (Defaults to datatype specific
value)
--type=TYPE output datatype, must be one of ['Int32', 'Int16',
'Float64', 'UInt16', 'Byte', 'UInt32', 'Float32']
--format=FORMAT GDAL format for output file (default 'GTiff')
--creation-option=CREATION_OPTIONS, --co=CREATION_OPTIONS
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=ALLBANDS process all bands of given raster (A-Z)
--overwrite overwrite output file if it already exists
--debug print debugging information
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>=''>
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