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Originally posted by krull11
I seriously have no idea what this is. I mean there are perfect squares there. Even if it's blurry and low resolution there are... perfect squares, which doesn't come off as natural to me at all. I'd like to hear an explanation for it.
I'm not sure what NASA or anyone else puts on the net publicly but I think it may be over somewhere on the NASA official pictures section. I'll probably have a field day with looking for it in a bit here.
[edit on 24-11-2009 by krull11]
On the basis of the three- and five-channel stereo data we have produced Digital Elevation Models (DEMs) with pixel resolutions of 200 m. Terrain models of higher resolutions (50 m/DEM pixel) were derived in selected areas, as surface textures, illumination conditions, dust load of the atmosphere, and prevalence of compression artifacts vary from place to place.
Yes, the images have been processed but that is quite normal. We are not taking colour photographs, we have to combine the different colour channels which requires processing time. Each of the four colour channels operate with a filter of different wavelength (red, green, blue and infrared) and produce data sets which have to be combined and calculated on to a digital elevation model.