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Posted by Gunther Gloop on 08/15/06 12:09
chris66@hotmail.com wrote:
> One thing that does confuse me, how can they bring out old films like
> 'Enter The Dragon' in HD ? it was not filmed in HD so where does the
> better picture come from?
>
Transferring anything from an analogue to digital format involves losing
some information [*].
'Traditional' photographs (to keep it simple) are not made up of
dots/pixels -digital ones are.
To transfer a traditional photo to digital, it needs to have enough pixels
that it doesn't _look_ like it's missing details, but if you zoom into most
perfectly-acceptable-looking jpegs you will see how badly they actually do
for 'storing' accurate detail.
"HD" just means there are more dots allowable in the transfer for each &
every image.
eg. In a freeze on a scene from Enter the Dragon, Bruce Lee's nose in the
original celluoid is "a nose" (not sure how to describe how it's stored, but
you get the idea -it's part of "a smooth image").
On dvd, the same nose might be made up of 300 dots -ie. you zoom in and you
will clearly see the dots.
On HD, it could be made of 3000 dots -making it a much
smoother/more-accurate approximation of the original 35mm film.
-Kevin.
[*] Well -more or less
--
Email replies to: news1@SPAMBEGONEkevinforde.com
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