Michael & Co,
I am trying to iron out the hpf fusion implementation before attempting
to integrate it in i.pansharpen. There is an undesired effect when
running the i.fusion.hpf script which I don't understand.
It's quite obvious that the algorithm is not uniformly applied through
out the entire computational region when just when nearing the edges of
the image(s). It is visible as a thin darker frame (a few pixels wide)
identified all-around, near the edges of the output image. Especially
when forcing high modulation factors (to increase sharpness of the final
product).
I guess that an (r.m)filter expert would probably identify the problem
quickly. If you zoom in to the example pictures illustrated in
<https://github.com/NikosAlexandris/i.fusion.hpf/blob/master/Documentation.pdf>,
or if you simply run it in your own images (just use center=high and
modulation=max), you can see in the effect in the edges of an output
(pan-sharpened) image.
Anyone willing to help?
Thanks, Nikos
---
Michael Barton wrote:
Nikos,
Have you considered adding HPFA Image Fusion Technique as a method
in
the i.pan.sharpen module?
Nikos:
Of course. First, however, I want to complete a stand-alone version.
Then, check for integration.
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