gdaldem histojam

Making gdaldem color-relief color configuration files by hand can be a drag. Jam on some histogrammatic colormap file creation workflows instead.

Calculate a histogram passing the -hist option to gdalinfo for your geotiff, write the output to a new json file, and upload it with the file selection option below.

gdalinfo -json -hist file.tif > info.json

Pick your colors and adjust the options to suit your needs, then copy the color configuration results to a text file for your next g'damn gdaldem color-relief attempt.

Common colormaps

Special thanks to the gdal gdaldem color-relief function for bringing color to the world, and to dicopal.js for making it easy to pull in a broad collection of color palettes.