[GRASS-dev] GRASS-dev] On i.histo.match (Re: On (Landsat) imagery naming patterns)

Moritz Lennert mlennert at club.worldonline.be
Thu Aug 1 02:28:43 PDT 2013


On 01/08/13 11:04, Nikos Alexandris wrote:
> Michael Barton wrote:
>
>> Nikos,
>>
>> What about just using r.rescale to rescale this?
>
> Already tried (in the past) and I don't think it works from DCELL>  8-bit. It
> seems to chew-up (silently, as Moritz mentioned I think among the lines in
> ticket #2^11) values.
>
> It seems that "integerising" manually, in this case, is the best approach.
> With the essential question remaining on "how many fine digits should be
> preserved?".

r.rescale is just a frontend to r.reclass. and as such is meant for CELL 
maps. It should'nt make a difference whether it is 8-bit or more, though.

For DCELL you can try to use r.recode.

Moritz


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