On Fri, Jul 26, 2013 at 9:48 AM, Jan De Moerloose <
jan.demoerlo...@geosparc.com> wrote:
> I already checked the ImageMosaic module but could not find any hooks to
> change the merge behavior.
>
There is none
> I noticed there is a MOSAIC_TYPE_BLEND in JAI, which allows me to take
> weighted averages by passing an extra alpha image for each image. I will
> explore that and let you know. If there are any suggestions on increasing
> performance and reducing memory usage, i'd be glad to know.
>
Just create your own JAI operation, they work in tiled mode, so their
memory usage is controlled by the size of the JAI TileCache.
As for performance, writing a fast operation is tricky, but have a look at
the JAI own operations and you should get ideas on how to
make it
Cheers
Andrea
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