Answer:
The correct answer is Noise
Explanation:
Image noise is random variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the image sensor and circuitry of a scanner or digital camera. Image noise can also originate in film grain and in the unavoidable shot noise of an ideal photon detector. If you adjust your shutter speed and ISO settings you can usually get rid of noise in a photograph!
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