Compression artifact
NOTICEABLE DISTORTION OF MEDIA CAUSED BY THE APPLICATION OF LOSSY DATA COMPRESSION
Compression artefact; Compression artifacts; Block artifact; JPEG artifacts; JPEG artifact; Compression artefacts; JPEG compression artifacts; Mosquito noise; Datamoshing; Datamosh; JPEG artefacts; Mosquito artifact; JPEG artefact; Jpg artifacting; Jpeg artefacts; JPG artefacting; Lossy compression artefact; Lossy compression artifact; Data moshing; Video compression artifact; Image compression artifact; Artifact (compression)
A compression artifact (or artefact) is a noticeable distortion of media (including images, audio, and video) caused by the application of lossy compression. Lossy data compression involves discarding some of the media's data so that it becomes small enough to be stored within the desired disk space or transmitted (streamed) within the available bandwidth (known as the data rate or bit rate).