Topic summary
Compression artifacts
Extracted from the Wikipedia article Compression artifact.
Artistic use
Compression artifacts may intentionally be used as a visual style, sometimes known as "glitch art". Rosa Menkman's glitch art makes use of compression artifacts, particularly the discrete cosine transform blocks (DCT blocks) found in most digital mediadata compression formats such as JPEG digital images and MP3digital audio. In still images, an example is Jpegs by German photographer Thomas Ruff, which uses intentional JPEG artifacts as the basis of the picture's style.