but I need some help! Please.

All I want to do is edit a height map, both in wideness and height, and smooth it out afterwards.

But any changes I make are not saved to disk.

What I figured out from the manual is that the "texture to height..." could be the thing that flattens the image, but it does not work. The map gets all distorted.

Original file: Grayscale BMP
Same format wanted for output.

Very thankful for help.