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Better Portable Graphics : ウィキペディア英語版 | Better Portable Graphics
Better Portable Graphics (BPG) is a file format for coding digital images, which was created by programmer Fabrice Bellard in 2014. Its purpose is to be a more compression-efficient replacement for the JPEG image format when quality or file size is an issue. It is based on the intra-frame encoding of the High Efficiency Video Coding (HEVC) video compression standard.〔 Tests on photographic images have shown that BPG produces significantly smaller files for a given quality than any other graphics file format.〔 While there is not yet built-in native support for BPG in any mainstream browsers, websites can still use BPG images in all browsers by including a 56KB (after gzipping) JavaScript library made by Bellard.〔 == High Efficiency Video Coding and BPG ==
HEVC already has several profiles defined for still-picture coding using HEVC's intra-frame encoding for various bit depths and color formats, including the progressively more capable Main Still Picture, Main 4:4:4 Still Picture, and Main 4:4:4 16 Still Picture profiles. BPG is essentially a wrapper for uses of the HEVC's Main 4:4:4 16 Still Picture profile up to 14 bits per sample.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Better Portable Graphics」の詳細全文を読む
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