Hey all,
I couldn't let Andrea get away with poking at standard SLD support in
geotools all by himself!
I'd also like to support a slight extension to the SLD spec, too.
Specifically, the SLD spec only supports two "contrast enhancement"
techniques for rasters. I'd like to also support some variants of the
normalization technique, as well as the "standard" (or min-max)
normalization technique.
Specifically, I'd like to support SLD XML like this:
<ContrastEnhancement>
<Normalize standardDeviations="2.0" />
</ContrastEnhancement>
Basically, I'd like to add support for the optional
"standardDeviations=float" attribute on the Normalize tag.
If anyone's interested in the details, I can fill you in on IRC about
what exactly the difference between a "regular" normalization and a
"standard-deviation" normalization is, but here's a visual example:
http://maps.massgis.state.ma.us/~sfarber/contrast_stretching/
Any thoughts/concerns/comments/encouragement about the SLD extension
part of this plan?
Separately, I'm hoping to get the RasterSymbolizer support committed to
2.4.x and trunk right after 2.4.0 goes out the door. But the merge from
the 2.4.x_rs branch is proving to be more of a pain than previously
hoped!
--saul
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