DEM filtering Algorithm

[stuart1974 40]

Hi,

I have a sample DEM that has been generalized and filtered but keeping the sharpness of features. I have tried all filters i know but i couldn't replicate it. I would like to see if someone knows how to do it.

Below are the links for the original and processed DEM:

Processed: http://www.mediafire.com/file/1rv6nq3d3fwi6tp/filtered.jpg/file

Original: http://www.mediafire.com/file/rn1jkbd06uwhkr4/original.jpg/file

 

Thanks in advance

Stuart

[Jae0 1]

I’ve seen similar results in SAGA GIS using the “Multi Direction Lee Filter” tool.

 

http://www.saga-gis.org/saga_tool_doc/7.1.1/grid_filter_3.html

[stuart1974 40]

Hi Jae0,

 

I tried the algorithm, it smooths the DEM but its not anything like the sample. The texture in the sample is very smooth and shiny, as if it is polished. I hope someone knows how we can accomplish it.

 

Thanks Stuart