I am working with Float64 GeoTiff files from Sentinel with many bands of reflectance values. My current workflow involves opening the GeoTiff in QGIS, selecting the proper bands for RBG, and saving again as a rendered image, then moving over the GMT to make nice maps. Does anyone know if there is a way to complete this first step directly in GMT or gdal?
grdimage sentinel_data.tif=gd+b3,2,1 ... does not work because the values are not Byte, but I also have not had success with gdal_translate or grdmath attempts for preprocessing into the necessary format for grdimage. Any insights are appreciated!