[Sidefx-houdini-list] cop's log 2 lin

Andrew D Lyons tstexture at gmail.com
Fri Jan 9 12:24:33 EST 2009


Is this the kind of image you are dealing with?

http://www.imagemagick.org/www/motion-picture.html

I'd guess you would need to know the black point,white point, and
gamma with which the image were encoded...

Cheers



2009/1/9 Ben Schrijvers <ben.schrijvers at guerrilla-games.com>:
> Hi there,
>
> In COP's how do I convert from a log image to a linear image?
>
> I've found a log(x) function in the Function Cop but somehow that gives
> me negative values.
> But that probably the wrong way around in that it's lin to log.
> So what's the inverse? Obviously I've got now idea what I'm talking about...
>
> cheers,
> benS
>
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Andrew D Lyons | Digital Artist | http://www.tstex.com
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