BPG Image format

#1

Post by mjs » Fri, Dec 05, 2014, 2:30 PM UTC

BPG Image format
bellard.org

Re: BPG Image format

#2

Post by spb » Fri, Dec 05, 2014, 6:47 PM UTC

Don't we already have WebP?

Re: BPG Image format

#3

Post by muizelaar » Fri, Dec 05, 2014, 7:45 PM UTC

spb wrote: post #2

Don't we already have WebP?

From the article: "Mozilla did a study of various lossy compressed image formats. HEVC (hence BPG) was a clear winner by a wide margin. BPG files are actually a little smaller than raw HEVC files because the BPG header is smaller than the corresponding HEVC header." This study includes WebP.

Re: BPG Image format

#4

Post by WhitneyLand » Fri, Dec 05, 2014, 7:53 PM UTC

spb wrote: post #2

Don't we already have WebP?

Yes but webp hasn't taken off as much as some would like as a defacto standard.

BPG looks good upon cursory inspection. It seems to be more efficient than WebP and supports 42-bit color. It also has .png's features of transparency and lossless compression although I didn't see anything mentioned about animation to replace .gif.

Bonus: since it's based on h.265 hardware support will come naturally and should be just a software update for devices that already have HEVC capability.

Re: BPG Image format

#5

Post by dahjelle » Fri, Dec 05, 2014, 7:54 PM UTC

WhitneyLand wrote: post #4

spb wrote: post #2

Don't we already have WebP?

Yes but webp hasn't taken off as much as some would like as a defacto standard. BPG looks good upon cursory inspection. It seems to be more efficient than WebP and supports 42-bit color. It also has .png's features of transparency and lossless compression although I didn't see anything mentioned about animation to replace .gif. Bonus: since it's based on h.265 hardware support will come naturally and should be just a…

Not to mention it has a JavaScript port that means it can work it browsers today.

Re: BPG Image format

#6

Post by _nickwhite » Fri, Dec 05, 2014, 7:56 PM UTC

I really dig it, but I'm not yet familiar with BPG. It seems that decoding it would take more processing power, and potentially be slower than JPG. Is this the case? Under the "performance" section, decoding speed was not mentioned.

Re: BPG Image format

#7

Post by userbinator » Fri, Dec 05, 2014, 7:57 PM UTC

Its purpose is to replace the JPEG image format when quality or file size is an issue.

Some of the HEVC algorithms may be protected by patents in some countries

There have been some patent disputes over JPEG, but I don't think replacing it with another possibly patented format is a good idea, even if it's technically superior in some ways.

Re: BPG Image format

#8

Post by sp332 » Fri, Dec 05, 2014, 7:59 PM UTC

Wow, I didn't even know there were open-source HEVC encoders. I thought there were patent issues. Now I'm off to re-encode my bluray collection!

Re: BPG Image format

#9

Post by than » Fri, Dec 05, 2014, 8:00 PM UTC

Pronounced 'bee-peg'?

Re: BPG Image format

#10

Post by reidrac » Fri, Dec 05, 2014, 8:02 PM UTC

userbinator wrote: post #7

Its purpose is to replace the JPEG image format when quality or file size is an issue. Some of the HEVC algorithms may be protected by patents in some countries There have been some patent disputes over JPEG, but I don't think replacing it with another possibly patented format is a good idea, even if it's technically superior in some ways.

"Most devices already include or will include hardware HEVC support, so we suggest to use it if patents are an issue."

I don't know if that suggestion makes much sense, but you missed it in your quote.