High Efficiency Image File Format: Difference between revisions

Revision as of 14:14, 25 November 2015

Revision as of 14:20, 25 November 2015

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* Storage of images derived from other images of the file, either as derived images represented by [[Layers (digital image editing)|non-destructive image editing]] operations or as pre-computed derived images,

* Support for storing other media, such as audio and timed text, into the same container file with timed image sequences and synchronizing their playback. 

As HEVC provides support for various [[Chroma subsampling|chroma formats]] and sample fidelities up to lossless coding, the format can serve the whole spectrum of use cases from today's consumer devices storing images typically at 8 bits per sample to high-end professional devices with sample fidelity and dynamic range requirements going all the way up to 16 bits per sample. Some usage scenarios that are facilitated by HEIF are described below:

=== Digital Cameras and Smartphones: ===

In order to save storage space [TODO: x-ref to compression results], HEIF-encapsulated HEVC-coded images can be used for compressing the full-resolution images while keeping a lower-resolution JPEG copy (e.g. at 4K resolution or below) for on-screen displaying purposes.

Digital cameras and smartphones can use HEIF to achieve convenient one-file packaging of burst photos, focal stacks, and exposure stacks. Similarly, simultaneously captured video and still images can be stored in the same HEIF file. HEIF also enables storage of any image collections into a single file, which can be shared easily.

== References ==