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Posted by Martin Heffels on 09/28/69 11:52
On Mon, 10 Jul 2006 12:55:14 -0700, "PTravel" <ptravel@ruyitang.com> wrote:
>We're still talking about apples and oranges -- data reconstructed using ECC
>is accurate and bit-for-bit what was recorded (or supposed to have been
>recorded). Replacing pixels (or scan lines or averaging blocks) results in
>lost data.
Nooooooo, it is not :-) Again, in this case there are several steps of
error-correction, which vary from flipping a bit into it's correct
posotion, to borrowing data from surrounding compression-blocks, to
borrowing data from adjacent frames, to borrowing a whole frame.
Only in the case of flipping a bit, you come closest to an accurate 1-to-1
correction.
-m-
--
"If he can he'll smile 'cos he's a Royal Crocodile."
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