Mar 16
Originally uploaded by Dancing Crow.
The same picture of the same puddle in Brattleboro, with a radically different palette.
I had forgotten that one of my favorite things to do, back when I was a geographer and could do such things, was experiment with satellite images. Using different bands (reflections in different wavelengths) it was possible to make psychedelic images of recognizable places, and highlight different kinds of information too. Landsat - the one I used most - had information in 2 infrared bands, a green band, a red band, a blue band and one close to ultraviolet. Plus one more that I've forgotten. One trio of bands (infrared, red, green, if I remember correctly) is particularly good at locating vegetation, others highlight man-made objects, or water. There is a set of default false color sets, assigning different bands to blue, red and green for display, that get used a lot and many people familiar with imagery can read them like books. There are other sets, or reassigning the bands to different colors that are just astonishing and gorgeous.
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