These are unprocessed, yet still quite useful Infrared Thermal images.
Looking through these photos, you can immediately tell this is unlike a normal color sensing camera. The Infrared (IR) imaging sensor on this aircraft takes a 640x512 pixel thermal photograph. In the images, each pixel represents a different temperature value. The color is then added to highlight differences in temperature. In these demo photos, the brighter yellow something is, represents a hotter surface.
Different color palettes are popular for other types of applications. You may have seen military or police applications using a grayscale palette with white representing hot or vice versa.
Another unique use case for thermal cameras is search and rescue. the color palette can be tuned so the narrow range of human body temperatures are highlighted red, leaving anything colder as dark gray to black, and anything hotter as light gray to white
By trade, I'm not a professional photographer, however
Useful or interesting information derived from the IR demo photographs:
This photo was taken on a 53°f day around 10AM. Some roofing heat loss is normal, however, we can see heat leakage due to inconsistent insulation marked by the brighter yellow vertical bands on the base of the roof.
Same flight as photo 1. Infrared radiation can be detected from quite a distance when the target is large enough.