Pixel mapping is a process which is usually done with all new digital cameras at the factory, so they are essentially 'perfect' out of the box - even though the realities of life mean that the image sensors the cameras contain often do suffer a few problematic pixels from day one. Olympus' Camedia C-4040Zoom already includes an 'Automatic Pixel Mapping' algorithm in the firmware out-of-the-box.
簡單來說，任何一部數碼相機，在出廠前，會先經過 Pixel Mapping 的過程，確保數碼相機在出廠後，透過機內的軟件計算光點或死點顯示的色彩，令用家不會看到 CCD 或 CMOS 上有任何光點或死點，所以，大家所使用的數碼相機，內裏的影像感測器可能有不少光點或死點！
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