The original version of this can be found at registry.gimp.org but the gimp registry is now defunct. It can also be found at www.iesguillembergueda.cat
With the changes in gimp-2.10, and particularly on larger photos, the default settings tended to crash. See e.g. gimpusers mirror of the list
Following the suggestion from Helmut Jarausch I altered this to use per-mille instead of percent for the amount of gaussian blue. I then increased the default amount (which had been 10%) from 10‰ to 25‰. You may gather that I prefer filters where I can keep to the default values!
This works on publically-available photos areound 6000x4000 pixels, but increaing the amount, or using it on larger images, can again fail.
Get it here: advancedtonemapping-2.10.scm.
These are a couple of negative scans from 2002 (on the Selketalbahn in Germany), to show what this does - reduced to be small enough for side-by-side viewing.
| Leaving Gernrode, camera jpg | same, with Advanced Tone Mapping |
| 99 5906 at Alexisbad, camera jpg | same, with Advanced Tone Mapping |
Ken Moffat, 2019-08-06. E&OE