Each time you take a picture, millions of calculations are made in just a
few seconds. It’s these calculations that make it possible for the camera to
interpolate, preview, capture, compress, filter, store, transfer, and display
the image. All of these calculations are performed in the camera by an image
processor that’s similar to the one in your desktop computer, but dedicated
to this single task. How well your processor performs its functions is criti-
cal to the quality of your images but it’s hard to evaluate advertising claims
about these devices. To most of us these processors are mysterious black
boxes about which advertisers can say anything they want. The proof is in the
pictures.
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