[GRASS-user] r.mfilter

[Rebecca Bennett]

Dear all,

I am currently putting together a script for a colleague to help automate some 
DTM processing.

Part of this script involves a low pass filter applied using r.mfilter. When I 
applied this command for my research I used GRASS 7, but my colleague will only 
have access to GRASS 6.4. 


There is a large discrepancy in the quality of the low pass r.mfilter output 
between the two versions with 6.4 giving a stepped DTM that cannot be used for 
further processing in this instance.

My questions are, what underlies this discrepancy and can I improve the 
r.mfilter results from GRASS 6.4 to make them of equal quality to those of GRASS 
7?

Thanks as always for your time,

Rebecca Bennett
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