Question about compression algorithm

[Peter Pregler]

On 30-Sep-99 Jacob Nikom wrote:
> Hi,
> 
> I wonder what compression coding is used for WebCamII?
> Is it JPEG, MJPEG (JPEG for each independent frame) or
> MPEG?

Sine none answered. The camera uses a 'send the pixels that changed
somehow since the last picture' algorithm. The tricky part is of cause the
definition of 'changed somehow'. Have a look at the Developers Guide for
the CPIA-chip. There are commands SetCompression/SetCompressionParameters,
etc. to control that stuff.

Greetings, Peter

-------------------------------
Email: Peter.Pregler@risc.uni-linz.ac.at
WWW:   http://www.risc.uni-linz.ac.at/people/ppregler
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