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NumPy is a Python module, adding support for large, multi-dimensional arrays and matrices, along with a large library of high-level mathematical functions to operate on these arrays.
10
votes
How to use gdal_calc.py for multi-band images?
To calculate a grey-scale from the same input file using different bands u can open the file multiple times and define the band which you want to use with --A_band=n.
See my example for calculating t …