Re: CCTV

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

thanks ... it's just that getting the lighting right can make a big
difference to the clarity / usefulness of the image ... also wonder
if there's some image-enhancement software that could be used to
sharpen-up CCTV images (using dithering, say, or whatever) & take-out
the noise ? ...

Chris


On 7 Apr 2007, at 07:13, Richard wrote:

> I've never been too worried about my security images being too flat ;)
>
> There are separate IR illuminators available from most of the CCTV
> vendors
> with integrated CDS cell to turn on when its dark, they seem to do
> the trick
> without wasting GPIOs from your card on it.
>
> Chris Hunter
> Sent: Friday, April 06, 2007 1:22 AM
>
> 'trying to choose a CCTV camera ... some come with IR lamps built-
> in ... and yet, in normal photography, having the lamps actually on
> the camera is not a good idea, because it gives a very flat image ...
> so, 'wonder, has anyone tried mounting the lamp separately from the
> camera ... 'suppose it might involve having some light sensors, too,
> so the lamp came-on only when needed ... our digital imaging PCI card
> has a multi-channel GPIO daughter-card, which should allow such
> possibilities ...
>
> 'still can't decide which camera to buy ...



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