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Re: filmscanners: Re: filmscanners: autolevels was re: filmscanners: Vues can blue anomaly
At 01:21 PM 7/26/01 +1000, Rob Geraghty wrote:
>Rafe wrote:
>>With white point, it's important *not* to use
>>a specular highlight -- eg., a reflection of
>>the sun off of a shiny surface.
>
>But if that's the only area that could be described as white, what *should*
>you use? :-7
Find the next-whitest thing, and make appropriate
allowances. When you set white/black points with the
droppers, you can make the RGB value anything you want to.
This is not a huge problem in practice. I can almost
always find a decent black point and white point in
every image. This is actually a notion that predates
digital imaging by many decades.
rafe b.
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