Margus Ramst heeft geschreven in bericht <370fe1a3.0@news.povray.org>...
>You would, in effect, convert a 256-color image to HF_16, still containing
>only 256 unique values. Correct colors, yes, but still only 256. You might
>as well take the standard greyscale image to a paint program and make it
the
>red channel of a truecolor TGA.


No, the calculation results in a float, with an accuracy about 9 times
better. (smallest factor is 0.11). I offered this because I already made a
read module for my investigations, so conversion would be only a small step.

Frans

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