Free Lossless Image Format
Filename extension |
.flif |
---|---|
Magic number | FLIF |
Initial release | 3 October 2015[1] |
Latest release |
0.2.2 (8 November 2016[2]) |
Open format? | Yes |
Website |
flif |
Free Lossless Image Format (FLIF) is a work-in-progress lossless image format claiming to outperform PNG, lossless WebP, lossless BPG and lossless JPEG 2000 in terms of compression ratio on a variety of Inputs. [3]
FLIF supports a form of progressive interlacing (a generalization of the Adam7 algorithm), which means that any partial download of a compressed file can be used as a reasonable lossy encoding of the entire image.
History
The format was initially announced publicly in September 2015,[4] with the first alpha release occurring about a month later, in October 2015.[1]
The first stable version of FLIF was released in September 2016.[5]
Design
For compression, FLIF uses MANIAC (Meta-Adaptive Near-zero Integer Arithmetic Coding), a variant of CABAC where the contexts are nodes of decision trees which are dynamically learned at encode time.
References
- 1 2 "Release v0.1-alpha · FLIF-hub/FLIF". 3 October 2015.
- ↑ "Release v0.2.2 · FLIF-hub/FLIF". 2016-11-08.
- ↑ "FLIF is a New Free Lossless Image Format That Raises the Compression Bar". PetaPixel. 2 October 2015. Retrieved 20 October 2016.
- ↑ "Free Lossless Image Format (FLIF)". 6 September 2015. Archived from the original on 2015-09-12.
- ↑ "Release v0.2 · FLIF-hub/FLIF". 2016-09-22.