[GRASS-dev] i.fusion.hpf addon: observing strong range change

Moritz Lennert mlennert at club.worldonline.be
Wed Oct 30 06:06:28 PDT 2019

On 29/10/19 19:11, Veronica Andreo wrote:
> On the other hand, i.pansharpen does include a re-scaling step, but 
> whatever bit depth is passed as input it will be re-scaled to 8-bit. If 
> the input data is >8-bit, it is a bit of a loss of radiometric 
> resolution (if the resulting values can be used for indices estimation)...

IIRC, this rescaling is due to the histogram matching step. This should 
probably be rewritten to allow arbitrary radiometric resolution.


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