Why are concrete and red-brick buildings cyan in infrared false color (IRFC) images?
Most building materials are made of soil (e.g. red tile roofs or concrete), thus most urban areas have the spectral signature of a soil.
Nevertheless, in IRFC satellite images we usually see bright urban areas in Bright Cyan instead of Dark Brown/LightBrown to Orange or Whitish. why is that?
Janarthanan Rameshkumar
Hi @Matteo Biondi
This is because the buildings exhibit shorter wavelength that corresponds to red colour indication
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