Typically the scanner just uses 1 in 4 samples, but this could vary with
scanner model or more likely the software driving the scanner. I would
recommend always scanning at the native resolution of the scanner and post
processing if you are not sure. Take a look at
http://www.normankoren.com/Tutorials/MTF8.html for some examples.
'''Wayne
At 05:31 PM 3/15/2009, you wrote:
>If I have a scanner which has a native resolution of 4800 ppi but I then scan
>at 1200 ppi, how is that handled by the scanner ? Does the scanner just use 1
>pixel of each 4 or does it average over the 4 pixels ?
>
>...Wayne
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