The map above is an example of a color infrared (IR) emulsion photo. This type of map was created by taking an aerial photograph an coating it with light emulsions that are sensitive to light wavelengths that are not visible to the human eye. As such, they are given false color; the map above utilizes false color to allow its viewers to make out its prospects. In the photo, colors are used to differentiate the greenery from the buildings and concrete structures. Things are much more distinguishable in IR maps than in black and white emulsion photos, such as vegetation, water, and concrete. This is definitely true of the photo above, with its red trees and light blue man-made structures.
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