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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.
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 ...
Date/Time Thumbnail Dimensions User Comment; current: 12:52, 24 September 2023: 1,216 × 684 (2.18 MB): Hugo Spinelli: Improved with assets from ambientCG.com, licensed under the Creative Commons CC0 1.0 Universal License.
GIF was one of the first two image formats commonly used on Web sites, the other being the black-and-white XBM. [5] In September 1995 Netscape Navigator 2.0 added the ability for animated GIFs to loop. While GIF was developed by CompuServe, it used the Lempel–Ziv–Welch (LZW) lossless data compression algorithm patented by Unisys in 1985.
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Web beacons embedded in emails have greater privacy implications than beacons embedded in web pages. Through the use of an embedded beacon, the sender of an email – or even a third party – can record the same sort of information as an advertiser on a website, namely the time that the email was read, the IP address of the computer that was used to read the email (or the IP address of the ...
All BMP frames are opened in the graphic editor, use 'Save As' gif for each frame, and select the option to target the background color for removal before saving the individual frames in gif format. The transparent background gif is then compiled from the individual gif frames. I just did, please look it over closely.--branko
The Wikipedia CHECKWIKI WPC 111 dump page provides information on Wikipedia articles with potential issues detected by the CheckWiki tool.