DJI Zenmuse XT2 Dual 4K/Drone Thermal Camera (19mm, 9 Hz, 336 x 256) - Manual (Page 12)

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ZENMUSE XT 2 User Manual
Isotherm
This feature allows designated temperature ranges to be represented with different color schemes,
so that objects measured in a single color scheme impart higher contrast and better visibility.
Individual isotherms (or color schemes) are separated by upper, middle, and lower thresholds,
which have a value in percentage or temperature.
Take the white-hot isotherm as an example. In the image below, the lower threshold of 128-grayscale
is used to represent temperature differences.
Between the lower and middle thresholds, color scheme 1 (48-Isotherm) is used. Between the
middle and upper thresholds, color scheme 2 (48-Isotherm) is used. Above the upper threshold,
color scheme 3 (32-Isotherm) is used.
128-Grayscale
Color Scheme 1 (48-Isotherm)
Color Scheme 2 (48-Isotherm)
Color Scheme 3 (32-Isotherm)
WhiteHotIso