We would like to build a simple web map application that displays raster data (e.g. a digital surface model) and symbolizes values (e.g. height) using a color ramp. Is it possible to have the user manipulate the symbolization, maybe even allow to perform a classification?
For example like this: http://maps.nrel.gov/biomass - only that we would like to additionally change the classification on the client side.
I am aware of WCS and read about GDAL in this answer, but it did not help much.
Can anyone point me to some actual examples doing raster manipulation? Any hints on where to read further?