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David Tulloh edited this page Jul 3, 2015 · 1 revision

As thermal images lie outside our visual range all graphical representations apply a palette of some kind.

An unprocessed image is often represented as gray scale values but mapping it on to a coloured palette often makes the image easier to understand by highlighting values or improving the contrast.

A sample of different palette options

The Iron palette is a popular choice parametric approximation, 256 element look up table (C code)