artifacting

[ ahr-tuh-fak-ting ]
/ ˈɑr təˌfæk tɪŋ /

noun

Digital Technology. the introduction of a visible or audible anomaly during the processing or transmission of digital data: Proper encoding will eliminate artifacting and pixilation in the images.
the introduction of any feature that is not naturally present but is a product of an extrinsic agent, method, or the like: Grainy artifacting in the final print is the result of dirt on the negative that could not be removed.

Origin of artifacting

First recorded in 2005–10; artifact (in sense “to introduce an anomaly in the processing of data”) + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019