On Wed, May 30, 2012 at 9:22 AM, Neumann, Tobias
<[email protected]> wrote:
> Hi Simone,
>
> is there any possibility to apply a ColorMap to each single channel?
>
> I have got a SID-Image with 3 bands and a big fat black edging. I want to set 
> each´s band values 0 to 5 as transparent. Is there any possibility to style 
> the image this way?

Not with the current code, and with standard SLD.
We would need to add extensions to SLD to support multiband color maps
(that would be "odd", since they would be value maps, not color maps,
that is, each band getting a new value),
and then code support for that

On trunk the problem could be addressed also by writing a WPS process
that changes
the values of the various bands, and then using it in SLD as a
rendering transformation

Cheers
Andrea

-- 
Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead

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