dem2rgb

Convert multiples DEM/DTM images/tiles to geoserver optimized grayscale float DEMs, or Terrarium/Mapbox codification colors.

Requeriments

• Python > 3
• numpy
• rasterio + GDAL

Installation

• Download GDAL, selecting the newest version of GDAL, and the appropriate one depending on the version of Python installed and the processor.If you are using Python 3.7, for example, download and then install using pip install GDAL-3.3.1-cp37-cp37m-win_amd64.whl (always adjusting according to the downloaded version).
• Download Rasterio, selecting the version analogous to GDAL, and install in the same way.
• To be able to use the installed package, configure environment variables (putting the full path depending on where the package is installed and the python version):
  • GDAL_DATA: '...\Python\Python37\Lib\site-packages\osgeo\data\gdal'
  • PROJ_LIB: '...\Python\Python37\Lib\site-packages\osgeo\data\proj'
  • Add to the Path variable the path '...\Python\Python37\Lib\site-packages\osgeo'
  • Check in console gdalinfo --version.
• Install the Numpy library using the pip install numpy command.

Usage

• Run python process.py --help to display available options
• Run python process.py --format terrarium|mapbox|grayscale to convert all the images inside the default input folder to a custom format. By default, converted images are stored in the output folder