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Term: Flat fielding

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Term: Flat fielding


Process that corrects for irregularities in pixel values caused by variations in pixel sensitivity in the camera sensor, dust or damage on a lens, uneven lighting, or distortions in the optical path to produce an image of uniform brightness. Flat fielding software can reduce non-uniformity in images. Lenses designed specifically for digital flat field imaging are best for cultural heritage imaging.

Flat-field correction (Wikipedia article)
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