gimp-developer  

Re: GUI Bugs: Levels and Curves

Steinar H. Gunderson
Tue, 14 Mar 2000 16:14:11 -0800

On Tue, Mar 14, 2000 at 03:42:29PM -0600, Jon Winters wrote:
>123, 123, 123 is a shade of gray
>115, 115, 115 is a shade of gray
>139, 139, 139 is a shade of gray
>
>Trust the numbers, they don't lie.

Of course they do, if one of these apply:

1. Your film is colour-balanced.
2. Your scanner is colour-balanced.
3. The light isn't even.
4. The Levels thingy in point 1 has destroyed all the grays, just
   because (e.g.) there was less blue in the shadows than there was
   red.

I'd say that normally _all four_ apply. The numbers lie. The Curves
correction is an attempt to make them truthful :-)

/* Steinar */
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