BPG (文件格式)

Better Portable Graphics
扩展名
.bpg
互联网媒体类型image/bpg、​image/x-bpg
首次发布2014年 (2014)
最新版本
0.9.8
2018年4月21日，​6年前​（2018-04-21）
格式类型有损、无损、位图图像格式
扩展自HEVC
免费格式？是
网站bellard.org/bpg

BPG格式，全稱「Better Portable Graphics」（更好的可攜式圖像），它是一個聲稱比現時最流行的JPEG壓縮格式更優秀的圖像壓縮方案，由法國的程式設計師法布里斯·貝拉（Fabrice Bellard）於2014年创建。他将影像編碼格式中的技術運用到了圖像編碼，以達至更理想的壓縮比率，而不同于JPEG為提高壓縮比而犧牲畫質的方式[1][2]。该影像編碼格式基於高效率视频编码（HEVC）的幀內編碼技術改良而成[3][2]。

HEVC與BPG的關係

HEVC全稱「High Efficiency Video Coding」，意为「高效率视频编码」。BPG的容器格式旨在更符合一个通用图像格式，而非HEVC中使用的原始比特流格式（通常放在其他容器格式中使用，例如MP4文件格式）[3][4]。

專利

BPG由於採用了部分HEVC技術，因此相信亦包含了部分HEVC持有的專利；基於這個技術上的門檻，LWN.net認為BPG很難取代JPEG的地位[4]。

參看

參考資料

  1. ^ BPG Image format. Fabrice Bellard. 2014 [2014-06-12]. （原始内容存档于2017-01-20）. 
  2. ^ 2.0 2.1 2.2 李文恩. 採H.265基礎的圖片壓縮新技術BPG，大幅提高低流量畫質. T客邦. 2014-12-25 [2014-12-26]. （原始内容存档于2014-12-27） （中文（繁體））. 
  3. ^ 3.0 3.1 BPG specification. [December 2014]. （原始内容存档于2014-12-06）. 
  4. ^ 4.0 4.1 BPG, a still-image format from video compression. LWN.net. [2014-12-27]. （原始内容存档于2018-06-18）. 

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