Wednesday, 22 June 2016

Gif

This is a type of silent animation that is in a bitmap image format which supports up to 8 pixels for each image allowing a single image to refernce its own pallet of up to 256 different colours from the 24-bit RGB colour space. It was introduced by Compuserve in 1987 and now is used worldwide as it is has been published on the internet as it has wide support and portability. Gif became popular because it used LZW data compression which was more efficient than the run length encoding that formats such as PCX that Macs used.  Gifs have some uses, which one is to store low-colour sprite data for games, another is for small animations and low resolution film clips, the most popular is for a humorous effect, one or more video sources can be edited, rearranged or changing the order to create a juxtaposition.  These could placed all over social networking apps such as Facebook or Twitter for different effects. A negative of the Gif is that it has pallets limitations which means it makes the Gif less suitable for replicating colour photographs and other images with continuous colour. However it is well suited for simpler images such as graphics or logos with solid area colour. one example being:


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