basin_index_map.png is the image the tutorial originally had: 1600,1600,1,1
200,1,1,3 is the original palette file. Seems over the years, that got a little mangled too.
Palette file hard to view? A little G’MIC code can fix that:
gmic map_palette.png expand_y. 15 output map_palette_31y.png
The tutorial code should look more like this now:
gmic basin_index_map.png map_palette.png map.. [-1] remove. resize. 50%,50% output basin_c0.png
And it should yield something like:
Try the default palettes too, such as
gmic basin_index_map.png map. 'hot' resize. 50%,50% output basin_c1.png
has set up a
folder at gmic-community
git repository - probably the best outcome of the day. From time to time, I’ll commit refurbished tutorials there. New ones as well. Being the community repository, any and all of you can join in the fun too: adopt a
command, wrap a tutorial around it and share the results. There’s more than enough to choose from. Why should I have all the fun?