Developer comes with bpg compression format like jpeg-replacement ‘




Developer Fabrice Bellard, among others responsible for the ffmpeg library is based on the hevc video codec built a new compression format for images. The format would bpg images down to half make less than the jpeg format.

Bellards bpg format used components hevc encoder in ffmpeg. This allows a similar quality images with the smaller half made ​​than when using the JPEG standard. The bpg format, or better portable graphics, offers the same color formats like JPEG and there too on top supports an alpha channel. Also rgb, ycgco- and CMYK color models are supported and color depths between 8 and 14bit are possible.

Through a javascript decoder, existing browsers images compressed with bpg decode . Also lossless compression is possible and metadata like EXIF and ICC profiles can be embedded in the bpg container. According Bellard is bpg even slightly faster than images taken with the compact hevc codec, because the header is smaller. For Windows and Linux is the source code of the new compression format freely available.

Whether the format is widely supported, is still unclear. Google came in 2010 with the webp format , but the use of particular web yet stay behind. Other formats compress better than average jpeg jpeg 2000 and re-jpeg.


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