[Radiance-general] How to get extreme values from a falsecolor image

[Vaib]

Hello everyone,

Falsecolor's documentation states that "The *-e* option causes extrema
points to be printed on the brightest and darkest pixels of the input
picture."

Is there any way to output (not print on image) the extrema values? This
could be helpful in appropriately scaling the "scale".

Thank you!

Best regards,
Vaib
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