FOSS gamedev and creative worlds

Hi everyone,
Is it possible to generate a map from a heightmap like this (attached)? I pixelized it because I'd like each pixel to be a node.
[edit] I just uploaded the original non pixelized map just in case. Maybe it would actually looks better this way.

PS.: I'm not sure if this is the right place to ask this question, please, fee free to move this topic to other place.

Hey thats where i live :) This modder generates worlds that way, his code will do it https://forum.minetest.net/viewtopic.php?p=117878#p117878

Of course it's possible to get the height from an image. The code for .bmp images is already done for the "image loader mod" and pngs can automatically be converted to bmps with the right program.