This is a great tool - one that is obvious in retrospect, but I had never
thought of.

It's great that it's possible to save an image with a certain gamma and then use
it as a height field, but the obvious question that affects the real utility of
this is:

Is it possible to READ the existing, non-gamma modified image in using a certain
gamma value for use in a height field?

So, for example, use TdG's gamma 1.0 image to generate his gamma 2.2 height
field?

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