Hi there,
I am hoping there is a way to do this in Paint.Net. In short here is what I'm trying to do.
I have an image (single band grayscale) of DEM. I would like to expand it and then blend with randomly generated values (Perlin noise would suffice for start). Starting point is in the centre below.
Ideally, there would be a buffer area around source/centre image that would copy values from centre and blend to other/bigger image.
All suggestions and ideas are welcome.
EDIT: added link to image.
https://drive.google.com/file/d/14WzWejBdI7QoFyGDJ9rnwIKr_Sca-MiL/view?usp=sharing
Thank you.