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The GIF animation shown in Figure 4 corresponds to a slow movement of the revealing layer. The GIF file repeatedly animates an upward movement of the revealing layer (perpendicular to layer lines) across a distance equal to p r. The animation demonstrates that the moiré lines of the superposition image move up at a speed, much faster than the ...
In comics and art more broadly, motion lines (also known as movement lines, action lines, speed lines, [1] or zip ribbons) are the abstract lines that appear behind a moving object or person, parallel to its direction of movement, to make it appear as if it is moving quickly.
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Click the GIF icon. Search for a specific GIF or browse by category. Mouse over the GIF you want to use. Click the GIF to insert it into your email. The GIF will be inserted wherever your cursor is placed in the email message.
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. Google announced the WebP format in September 2010, and released the first stable version of its supporting library in April 2018.
In general, 8-bit PNG images with no transparency or binary transparency are very comparable to GIF images. There aren't significant reasons to convert existing GIFs on Wikipedia to PNGs, except for issues such as MediaWiki's GIF scaling problems or in cases where the 256-color limit of GIFs produces a badly dithered image (this requires some ...
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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