-----Original Message-----
From: Peter C. Wallace [mailto:pcw@mesanet.com]
Actually the resolution is really about 1/3 the
stated
"Megapixel
resolution", especially if you take pictures of things with
high spatial
frequency (say fine pitch IC leads) This is because the
stated resolution
neglects to mention that the three color pixels in a group
are counted as
individual pixels -- basically a X resolution B/W sensor
behind a color filter
array is called a X resolution color sensor, but it really isn't...
filtering after the fact attempts to fix the artifacts,
but makes a
mess out of high spatial frequency images that would have
been ok if the
camera really had the stated resolution....
I see -- well, divide the numbers in thirds, then. :) Unless you're
lucky enough to find a camera that has a high-res b&w mode -- that
would be nice.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
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'