Backup of HEIF(No. 34) - YoyaWiki Plus!

H.265/HEVC | FileFormat > ImageFormat > HEIF

http://nokiatech.github.io/heif/index.html

Working with HEIF and HEVC
- https://developer.apple.com/videos/play/wwdc2017/511/ (slide)
High Efficiency Image File Format
- https://developer.apple.com/videos/play/wwdc2017/513/ (slide)
Capturing Depth in iPhone Photography
- https://developer.apple.com/videos/play/wwdc2017/507/ (slide)

仕様

Technical information
- http://nokiatech.github.io/heif/technical.html (isobmff.png)
LASSE HEIKKILÄ HIGH EFFICIENCY IMAGE FILE FORMAT IMPLEMENTATION
- https://dspace.cc.tut.fi/dpub/bitstream/handle/123456789/24147/heikkila.pdf
Overview of the High Efficiency Image File Format
- http://phenix.int-evry.fr/jct/doc_end_user/current_document.php?id=10265
```
JCTVC-V0072.doc
```

ISO / IEC 23008-12
- http://mpeg.chiariglione.org/standards/mpeg-h/image-file-format/draft-text-isoiec-fdis-23008-12-carriage-still-image-and-image
```
---   w15234-image-FF-draft-FDIS-cover
rloc
```

バイナリ形式

HEIF/Box

High Efficiency Image File Format - WWDC 2017
- https://developer.apple.com/videos/play/wwdc2017/513/ (PDF) (cache)

http://biblio.telecom-paristech.fr/cgi-bin/download.cgi?id=15849

ツール

GPAC support for HEIF
- https://gpac.wp.imt.fr/2017/06/09/gpac-support-for-heif/
  - GPAC - MP4Box

JPEG =(ffmpeg + x265)=> HEVC =(IO_HEIF)=> HEIF(.heic)

% x265Options="-x265-params log-level=1 -crf 12 -preset slower"
% ffmpegOptions="-loglevel warning  -pix_fmt yuv420p -vcodec libx265 -f hevc"
% MP4BoxOptions="-quiet -ab heic"
% ffmpeg -i test.jpg $ffmpegOptions $x265Option test.hevc
% MP4Box -add-image test.hevc $MP4BoxOptions -new test.heic

ダンプ

MP4Box -std -diso test.heic > test.heic.xml

ライブラリ

https://github.com/nokiatech/heif

https://github.com/strukturag/libheif/ (もしかして完全オリジナル？)
- https://twitter.com/NielsMache/status/946068315448987648
- https://twitter.com/NielsMache/status/939943440879620096
https://github.com/monostream/tifig (nokiatech のライブラリを使ってるだけ)

サンプル画像

JavaScript

https://github.com/nokiatech/heif/wiki/IV.-HEIF-Reader-JavaScript-Implementation

yohhoy

https://github.com/yohhoy/heic2hevc
お手軽なHEIFファイルの作成・表示方法
- https://qiita.com/yohhoy/items/fac992c335fa4fbbbbea
H.265/HEVC特許暗黒時代
- https://qiita.com/yohhoy/items/c2579097a507b1fbdddb

その他

「HEIF」ってなに？高画質で軽量化！iOS11から変わるiPhone写真の保存形式を調べてみた
- http://photolog.aiko15.com/10141/

macOS 10.13であらたにサポートされたHEIF画像をJPEGに変換
- http://piyocast.com/as/archives/4851

https://linustechtips.com/main/topic/791592-apple-abandons-jpeg-in-favor-of-heifhevc/
Apple Abandons JPEG In Favor of HEIF/HEVC
- https://linustechtips.com/main/topic/791592-apple-abandons-jpeg-in-favor-of-heifhevc/

Backup of HEIF (No. 34)

仕様

バイナリ形式

ツール

ライブラリ

サンプル画像

JavaScript

yohhoy

その他

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