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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, [16] particularly the discrete cosine transform blocks (DCT blocks) found in most digital media data compression formats such as JPEG digital images and MP3 digital audio. [2]
Glitch art is an art movement centering around the practice of using digital or analog errors, more so glitches, for aesthetic purposes by either corrupting digital data or physically manipulating electronic devices.
Original file (1,216 × 684 pixels, file size: 2.18 MB, MIME type: image/gif, looped, 120 frames, 3.6 s) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
GIF animation of an Apollonian sphere packing with transparent background. Transparency in computer graphics is possible in a number of file formats. The term "transparency" is used in various ways by different people, but at its simplest there is "full transparency" i.e. something that is completely invisible. Only part of a graphic should be ...
One of the easiest and most sought-after devices used to generate DOGs by hobbyists is the 1980s vintage Sony XV-T500 video superimposer. This device can luma-key a signal, capture a still frame into memory and then overlay the keyed graphic in one of eight colors onto any CVBS signal.
The PNG file format supports 8-bit (256 colors) paletted images (with optional transparency for all palette colors) and 24-bit truecolor (16 million colors) or 48-bit truecolor with and without alpha channel – while GIF supports only 8-bit palettes with a single transparent color.
An example of Nuclear Gandhi as an Internet meme. Nuclear Gandhi is a video game urban legend purporting the existence of a software bug in the 1991 strategy video game Civilization that would eventually force the pacifist leader Mahatma Gandhi to become extremely aggressive and make heavy use of nuclear weapons.
PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF)—unofficially, the initials PNG stood for the recursive acronym "PNG's not GIF". [ 6 ] PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without an alpha channel for transparency), and ...