Posted by Toby on 07/03/06 05:06

"PTravel" <ptravel@travelersvideo.com> wrote in message
news:4p_pg.114415$H71.15484@newssvr13.news.prodigy.com...
>
> "Martin Heffels" <youwishyouwouldknow@nottellinya.com> wrote in message
> news:hfiga2t7ffprp0nce5eu1mdldo0aa83lnt@4ax.com...
>> On Sun, 02 Jul 2006 22:17:40 GMT, "PTravel" <ptravel@travelersvideo.com>
>> wrote:
>>
>>>I was thinking more in line with the video equivalent of an audio
>>>compander -- something that can take the limited range that's available
>>>and
>>>expand it. For example, if Na lights put out light limited to 240-245
>>>angstroms (I'm just making up numbers here), something that would
>>>extrapolate on the video so that the lower range fell closer to red and
>>>the
>>>upper range closer to blue would provide a more varied, albeit false,
>>>coloration.
>>>
>>>Hmmm. Have I just invented a new filter?
>>
>> Want to have Ira Tiffen's e-mail address? :-)
>>
>> You could with some clever mathematics expand the range and fill in the
>> gap
>> on your computer,
>
> That's exactly my thought.

To what end? Who would want such a thing? Besides, you would end up with a
horrible posterization effect. Imagine trying to recreate 16 bit color from
4 bit color information...

Toby

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