Re: reverse engineering pwcx

[Lee Revell]

On Sat, 2004-08-28 at 12:17, Albert Cahalan wrote:
> > The LavaRnd guys examined the pixels on the actual
> > CCD chip.  It's 160x120.  The 'decompression' is
> > just interpolation.
> 
> Don't put much faith in the 160x120 number. Suppose
> that the chip is in a Bayer pattern, with 160x120
> of those. Well, how many pixels is that? Who knows.
> You'd sort of have 160x120, but with double the
> green data. Since green carries most of the luminance
> information, producing a larger image is reasonable.

Right, as someone else pointed out, this is wrong.

How do you account for the Slashdot poster's assertion that it's
physically impossible to cram 640 x 480 worth of data down a USB 1.1
pipe?

Lee

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