[opendtv] Re: Panasonic's AG-HVX200
- From: Jeroen Stessen <jeroen.stessen@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 28 Apr 2005 17:08:01 +0200
Hi,
Tom Barry wrote:
> And the perceived sharpness is considered to be the square of the
> area under this curve.
According to Parsival's theorem this is equal to the area under the
square of the impulse response, so it must translate more or less
to the brightness of thin lines. How well you can see thin lines.
If you change a thin bright line into a wider dim line, it still
remains visible. That is incidentally also how you can see objects
that are smaller than 1 arc minute (e.g. stars !), because they
still generate more (or less) light than their environment.
Greetings,
-- Jeroen
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