On 14/07/06, Chuck Norcutt <chucknorcutt@xxxxxxxxxxx> wrote:
>
>
> With only 256 integer brightness levels available in a JPEG if the
> brightness is increase by multiplying by, say, 1.5 then a brightness
> level of 100 becomes 150. But so does a brightness level of 101 become
> 150.
>
Eh? surely a brightness level of 101 would become 151 when multiplied by
1.5 and clipped to an integer (would be 152 if using real maths and rounding
to nearest integer).
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