BPG
From Just Solve the File Format Problem
(Difference between revisions)
(added magic pattern) |
Dexvertbot (Talk | contribs) m (Change telparia.com samples link to template) |
||
| (12 intermediate revisions by 5 users not shown) | |||
| Line 3: | Line 3: | ||
|subcat=Graphics | |subcat=Graphics | ||
|extensions={{ext|bpg}} | |extensions={{ext|bpg}} | ||
| + | |pronom={{PRONOM|fmt/687}} | ||
|released=2014 | |released=2014 | ||
}} | }} | ||
| − | '''BPG''' (Better Portable Graphics) is a compressed raster graphic format | + | '''BPG''' (Better Portable Graphics) is a compressed raster graphic format, using [[HEVC]] to encode pictures. Animation, deep color, and metadata are supported. The format is experimental and not natively supported by browsers; a Javascript loader is available that converts BPG to [[PNG]] for display. The bitstream format is very similar to raw HEVC. |
| + | |||
| + | <code>image/bpg</code> has been suggested for the MIME type, but none is formally registered. | ||
== Identification == | == Identification == | ||
| Line 12: | Line 15: | ||
== Specs == | == Specs == | ||
* [http://bellard.org/bpg/bpg_spec.txt BPG Specification] | * [http://bellard.org/bpg/bpg_spec.txt BPG Specification] | ||
| + | |||
| + | == See Also == | ||
| + | * [[HEIF]] | ||
| + | * [[AVIF]] | ||
| + | |||
| + | == Software == | ||
| + | * [[Tom's Editor]] | ||
| + | * [https://bellard.org/bpg/ libbpg] | ||
| + | * [[ImageMagick]] | ||
== Sample files == | == Sample files == | ||
| − | * [http://bellard.org/bpg/lena.html Comparison with JPEG] | + | * [http://bellard.org/bpg/lena.html Comparison with JPEG] (actual BPG files: [http://bellard.org/bpg/lena_q36.bpg lena_q36.bpg], [http://bellard.org/bpg/lena_q32.bpg lena_q32.bpg], [http://bellard.org/bpg/lena_q28.bpg lena_q28.bpg], [http://bellard.org/bpg/lena_q23.bpg lena_q23.bpg]) |
| − | * [http://bellard.org/bpg/gallery1.html Wikipedia pictures] | + | * [http://bellard.org/bpg/gallery1.html Wikipedia pictures] (actual BPG files: [http://bellard.org/bpg/003.bpg 003.bpg],[http://bellard.org/bpg/005.bpg 005.bpg]) |
| − | * [http://bellard.org/bpg/gallery2.html Images with alpha channel] | + | * [http://bellard.org/bpg/gallery2.html Images with alpha channel] (actual BPG files: [http://bellard.org/bpg/2.bpg 2.bpg],[http://bellard.org/bpg/2small.bpg 2small.bpg], [http://bellard.org/bpg/3.bpg 3.bpg], [http://bellard.org/bpg/5.bpg 5.bpg]) |
| + | * {{DexvertSamples|image/bpg}} | ||
== Links == | == Links == | ||
| + | * [https://bellard.org/bpg/bpg_spec.txt Official format specification] | ||
* [http://bellard.org/bpg/ Official site] | * [http://bellard.org/bpg/ Official site] | ||
| + | * [[Wikipedia:Better Portable Graphics|Wikipedia article]] | ||
| + | * [http://lwn.net/Articles/625535/ BPG, a still-image format from video compression] | ||
* [https://news.ycombinator.com/item?id=8704629 Some discussion] | * [https://news.ycombinator.com/item?id=8704629 Some discussion] | ||
| + | * [https://issues.apache.org/jira/browse/TIKA-1491 Identification of BPG format] | ||
| + | * [http://xooyoozoo.github.io/yolo-octo-bugfixes/ Online demonstrator]- shows quality differences between similarly-sized images in [[JPEG]], [[JP2]], [[WebP]] and [[BPG]] formats | ||
| + | * [https://github.com/mirrorer/libbpg Unofficial Github mirror] | ||
Latest revision as of 02:57, 28 December 2023
BPG (Better Portable Graphics) is a compressed raster graphic format, using HEVC to encode pictures. Animation, deep color, and metadata are supported. The format is experimental and not natively supported by browsers; a Javascript loader is available that converts BPG to PNG for display. The bitstream format is very similar to raw HEVC.
image/bpg has been suggested for the MIME type, but none is formally registered.
Contents |
[edit] Identification
BPG files start with the following 4-byte magic pattern: 42 50 47 fb.
[edit] Specs
[edit] See Also
[edit] Software
[edit] Sample files
- Comparison with JPEG (actual BPG files: lena_q36.bpg, lena_q32.bpg, lena_q28.bpg, lena_q23.bpg)
- Wikipedia pictures (actual BPG files: 003.bpg,005.bpg)
- Images with alpha channel (actual BPG files: 2.bpg,2small.bpg, 3.bpg, 5.bpg)
- dexvert samples — image/bpg
[edit] Links
- Official format specification
- Official site
- Wikipedia article
- BPG, a still-image format from video compression
- Some discussion
- Identification of BPG format
- Online demonstrator- shows quality differences between similarly-sized images in JPEG, JP2, WebP and BPG formats
- Unofficial Github mirror
