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A comment on AVIF support enabled by default in Firefox 86. Parent comment

Re:AVIF support enabled by default in Firefox 86 by aidenn0 on Sunday January 10, 2021 @12:39AM (#25710850)
Whatever happened to jpeg2k? I was making PDFs of comics; discovered that pdf supports jpeg2k, and the subjective quality was so much better than jpeg, to the point of text being legible at about 5x smaller size, and in addition the artifacts it introduces are far less unpleasant; jpeg introduces massive amounts of ringing in high contrast areas, while jp2 seems to just end up with lower contrast
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Re:AVIF support enabled by default in Firefox 86 by mkl on Sunday January 10, 2021 @05:40AM (#25713264)
JPEG2000 is used in some industries, but was too patent-encumbered to succeed in general. AVIF and WebP should be better for most things, and AVIF is freely licensed.
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Re:AVIF support enabled by default in Firefox 86 by aidenn0 on Sunday January 10, 2021 @01:24PM (#25717726)
I know you used past-tense, but at this point, the core patents should be mostly expired, right?
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Re:AVIF support enabled by default in Firefox 86 by kijin on Sunday January 10, 2021 @01:55AM (#25711657)
Internet Explorer didn't support it, so it was dead from the start. By the time other browsers gained significant market share, it was already buried six feet deep so nobody even bothered.
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Re:AVIF support enabled by default in Firefox 86 by rasz on Sunday January 10, 2021 @07:37AM (#25714098)
>Whatever happened to JPEG2000?

its shipping in RED cameras under the name REDCODE ;)

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Re:AVIF support enabled by default in Firefox 86 by walrus01 on Sunday January 10, 2021 @02:58PM (#25718970)
on a per device licensing cost, the patent encumberance of JPEG2000 is probably not a problem. But for widespread adoption, it's too problematic.
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Re:AVIF support enabled by default in Firefox 86 by cl0ckt0wer on Sunday January 10, 2021 @01:15AM (#25711260)
The wikipedia page make it seem like PNG is "better".
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Re:AVIF support enabled by default in Firefox 86 by fireattack on Sunday January 10, 2021 @03:43AM (#25712425)
That paragraph is poorly written and doesn't warrant a standalone heading at all. JPEG2000 is mainly a lossy format, comparing its rarely used lossless mode to other lossless formats is pointless.

While JPEG2000 doesn't catch on, it's still used moderately in some fields, particularly medical imaging and some other scientific imagings. And the use of wavelet-transform based algorithms in compression is adopted in lots of other formats too.

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Re:AVIF support enabled by default in Firefox 86 by realityking on Sunday January 10, 2021 @05:13AM (#25713072)
I recently learned that movies get delivered these days in a format called Digital Cinema Packages[1] - which is mostly JPEG 2000 images for each frame and PCM audio.

[1] https://en.m.wikipedia.org/wiki/Digital_Cinema_Package

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Re:AVIF support enabled by default in Firefox 86 by matt-attack on Sunday January 10, 2021 @07:01AM (#25713843)
Indeed. And studios are rapidly adopting the use of JPEG2000 lossless as a replacement for their mezzanine master via a similar standard called IMF (Interoperable Master Format). So yes Hollywood is very well committed to j2k and has been for over a decade.
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Re:AVIF support enabled by default in Firefox 86 by ksec on Sunday January 10, 2021 @09:56AM (#25715157)
Generally speaking wavelet-based image / video compression are computation expensive, comparatively speaking. But they fit certain type of Lossless /Extreme High Quality usage.

Good question though time to revisit jp2.

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