BPG image format

[Kojack]

I've been reading today about the BPG format, that is intended as an alternative for Jpeg. It's from Fabrice Bellard, creator of FFMpeg and QEMU.
It sounds pretty interesting:
- lossy and lossless compression
- alpha channel
- RGB, YCbCr (jpeg style), YCgCo, greyscale and CMYK
- 8 to 14 bit per channel

It uses the frame encoding of the HEVC video codec.

At the same file size, BPG is much higher quality than Jpeg: (this pic was just under 6KB in both formats)
Jpeg:


BPG:


The encoder and decoder are BSD licensed. (Although the decoder requires an LGPL licensed ffmpeg)
There's also a decoder that's written in javascript and lets you view the format online.


I wonder how the performance of decoding compares?

http://bellard.org/bpg

[c6burns]

Although the decoder requires an LGPL licensed ffmpeg

Wow that's pretty cool. I like that it supports alpha. If it's an avcodec then that's a pretty trivial interface. Basically it just has encode and decode routines (or encode2 or encode19 or whatever they are up to now)