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+[翻译中 by KayGuoWhu]
 How to convert video to animated gif image on Linux
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 Once thought of as outdated art forms, animated GIF images have now come back. If you haven't noticed, quite a few online sharing and social networking sites are now supporting animated GIF images, for example, on [Tumblr][1], [Flickr][2], [Google+][3], and [partly on Facebook][4]. Due to their ease of consumption and sharing, GIF-ed animations are now part of mainstream Internet culture.