How to write an Image-Filter output in a gpt graph?

[LaSpaias]

I think I found why its not working

@marpet

Indeed the Image-Filter operator is not well documented and it does not have the same functionality as the GUI “Create Filtered Band”.
We have it on our agenda to harmonise all these inconsistencies, but this will take a while.
The non-linear and morphological filters can’t be used from the command line. That’s not implemented.