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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 .
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 ...
This image has partial transparency (254 possible levels of transparency between fully transparent and fully opaque). It can be transparent against any background despite being anti-aliased. Some image formats, such as PNG and TIFF, also allow partial transparency through an alpha channel, which solves the edge limitation problem.
WebP is a raster graphics file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, [8] as well as animation and alpha transparency.
The logo of APNG Assembler, free software to create APNG images Mozilla Firefox added support for APNG in version 3 trunk builds on March 23, 2007. [ 17 ] However, because libpng is the PNG Group's reference implementation of the official specification, APNG support can never be supported in the main libpng distribution so long as it remains ...
Microsoft GIF Animator is a historical computer software program for Microsoft Windows to create simple animated GIF files based on the GIF89a file format.It was freely downloadable from the Microsoft Download Center but is now only available through MSDN and on third-party download sites.
Transparency – An image may have transparency, i.e., an alpha channel. Color Profile – An image may have an embedded ICC profile as described by the International Color Consortium. Animation – An image may have multiple frames with pauses between them, making it an animation. [4]
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.