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One color entry in a single GIF or PNG image's palette can be defined as "transparent" rather than an actual color. This means that when the decoder encounters a pixel with this value, it is rendered in the background color of the part of the screen where the image is placed, also if this varies pixel-by-pixel as in the case of a background image .
Original image, with good text edges and color grade Loss of edge clarity and tone "fuzziness" in heavy JPEG compression A compression artifact (or artefact ) is a noticeable distortion of media (including images , audio , and video ) caused by the application of lossy compression .
The only requirement was that this image was invisible, either by being the same color as the page, or by being transparent. Spacer GIFs themselves were small transparent image files. GIF files were used as it was a common format that supported transparency, unlike JPEG. These files were commonly named spacer.gif, transparent.gif or 1x1.gif.
[35] [36] A GIF image can include multiple image blocks, each of which can have its own 256-color palette, and the blocks can be tiled to create a complete image. Alternatively, the GIF89a specification introduced the idea of a "transparent" color where each image block can include its own palette of 255 visible colors plus one transparent color.
Animated GIF images are not processed by the server. When a smaller size is specified the original full sized animated GIF image is served. Whether the animated GIF image is subsequently scaled to fit the allotted space belongs to the capabilities of the receiving browser. Resizing an animated GIF image will significantly reduce its quality ...
Animated example of what a glitched video can look like, by Michael Betancourt (Mae Murray in a screen test). 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.
Example of glitch art by Menkman GLI.TC/H festival in 2010 Visuals for a Nils Frahm concert, April 2012. Rosa Menkman (born 1983) is a Dutch art theorist, curator, and visual artist specialising in glitch art and resolution theory. She investigates video compression, feedback, and glitches, using her exploration to generate art works.
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