On Thu, 14 Sep 2000 15:58:50 -0700, Xplo Eristotle
<inq### [at] unforgettablecom> wrote:

>Chris Huff wrote:
>> This would be better done as a post_process filter(since that is exactly
>> what it is). You could probably implement it with the existing add,
>> multiply, subtract, divide, and exponent filters.
>
>Uh.. no, it wouldn't. If you "photo" post-process an image with only 8
>bits of luminance, you're going to end up with hideous round-off errors,
>especially at the ends of the scale (if I've been reading this stuff right).

I am betting 50-50 that the post-process in MP uses the unclipped
color values which are defined as double (I think) or maybe float.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
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