On Wed, Sep 04, 2002 at 07:45:32PM -0500, Chuck Cole wrote:
> "Megapixel" alone doesn't tell you whether it's a linear or rectangular
> array.  Sometimes the details really matter and pixel-level asymmetry can
> really mess up image processing math.  Many CCD devices are TV format
> (something unrelated to 640x480 maybe 512x320. interlaced formats can get
> into the act also), scientific ones have square pixels and usually a
> symmetric array like 512x512 or larger.  Cameras are usually not meant (ie,
> "not supported") for any technical or scientific purpose, so it may be best
> to ignore the details finer than +/- 25% pixel count unless you have a real
> need to know.  Kodak supports some of their cameras.. including some source
> code.

Well for the record, my Canon S40 manual says 4.1 million total pixels
and 4 million effective pixels. The largest image the camera produces
is 2272x1704 which works out to be:

>>> 2272*1704
3871488

How's that for an answer. :-)

-Tim

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