How might one export image(s) from image overlays in a KML file to a standard geo-referenced raster format like geotiff?
Use case: NASA's Earth Observatory has a time series of the changing Athabasca Oil Sands, (kml). It's hard to get a personally meaningful sense of scale from the line scale bar on those images, or from viewing the scale bar in Google Earth. So I'd like to superimpose things I'm familiar with, but to do that I need to have them in a more manipulable format, with scale.
(I know that for this particular use case I can get the source geo-referenced images from NASA and just sidestep the whole conversion issue. However it's the general question I'm interested in answers for.)