Mozilla has not jumped on the JPEG XL bandwagon either: The Firefox maker said it's neutral with regard to the technology, citing cost and lack of significant differentiation from other image codecs.
Why do you need to transition from jpeg to anything else? Just keep using jpeg for old files.
Chromium is literally the only reason jpeg-xl isn’t being adopted right now
That's not a "reason" it's a "decision". Their actual reason is pretty good — they don't want to support every image format that comes along. That's a slippery slope, there are several hundred image formats - should they all be supported? How many of them have security flaws? How much work is it to check for security flaws even if none exist?
The original image formats for the web, jpeg, gif, png, svg, all have major benefits compared to each other. That's why they were successful. There used to be other widely used image formats but they all fell by the wayside because the goal is to try not to have many formats. Ideally we'd only have one.
And WebP moves a long way in that direction, it does basically everything except vector images. AVIF is still around for efficiency reasons (it's very really easy/fast/low battery consumption for camera hardware to create an AVIF).
JPEG-XL has advantages but unlike those two they are really small and not worth the effort.
Converting from jpeg to jxl comes some serious space savings and can be done losslessly.
The original image formats for the web, jpeg, gif, png, all have major benefits compared to each other. That's why they were successful.
We change video formats without any major benefits of one over the other. I think it's totally reasonable to do the same with image formats. Especially the data can be losslessly compressed even more.
I wouldn't call speed a major factor for image processing anyway. It's hugely important for movies, where AVIF is coming from, but much less so when there is no hard 30x2160x3840 pixels/s benchmark you need to reach.
I still won't get over it and will keep fighting for JPEG XL. It would fix so many issues and greatly reduce the bandwidth need of the internet while not either having weird licensing or royalties and / or being a „what if we just took one frame from a video“ picture format. Also it can encode back to JPEG lossless for legacy uses. What more could one want?
Well yes, however without acceleration JPEG XL is many times faster. Also if you only have a CPU for example.
It's also highly parallelizable compared to AVIF which also matters a lot considering the amount of cores is growing with the likes of ARM and hybrid architecture CPU.
AVIF also fairs badly with high fidelity and lossless encoding, has 1/3 the bit depth and pretty small dimension limits for something like photography.
I don't think AVIF is per se a bad format. I just think if I want to replace a photo oriented format I'd like to do that with one that's focused on „good“ photos and not just an afterthought with up- and downsides.
Thanks to wasm, you don't have to bow to Google's whim and can choose to include jpeg xl support on your websites if you want: https://github.com/niutech/jxl.js
I believe so. This line in the source code means it'll only attempt the decoding if an img element for a .jxl image url fails to load.
If you're on safari, you can verify it by going to the demo page at https://niutech.github.io/jxl.js/ and inspect the image element. If the src attributes contain blob, then it's decoded using the wasm decoder. If the src attribute contains url to a .jxl file, then it's decoded natively.
I read "wasm" as per "wasp" -- white, Anglo-Saxon -- and then my brain create "men" because Protestant didn't make sense. And I continued to read the sentence until context didn't make sense.
But it still kind of does.
(Yes, I know web assembly is a thing. Just making conversation.)
I expected Mozilla to implement this, I don't know how they expect to get marketshare by just following in Google's footsteps every step of the way.
Is Firefox it's own browser or just Chrome with a different engine? Even Apple support jxl, well the decoding anyway.
Because Mozilla really doesn't care about what people think anymore. They're an incredibly bureaucratic group dealing with a lot of red tape placed as a force for good that doesn't always meet the mark. It's mainly the reason Firefox doesn't have a lot of things (that it honestly should have)
Also, Firefox is a completely original browser but it doesn't have a "chromium" version the browser like Google Chrome does. Both of the Firefox commercial product and the source code compile to the same thing.
"Overall, we don't see JPEG-XL performing enough better than its closest competitors (like AVIF) to justify addition on that basis alone," said Martin Thomson, distinguished engineer at Mozilla, last year. "Similarly, its feature advancements don't distinguish it above the collection of formats that are already included in the platform."
So is this a legit take on the technology? Sounds like an expert in the field is pretty convinced that this file format isn't really worth it's weight. What does JXL give the web that other file formats don't?
Perhaps true from his... perspective. I've found JXL surprisingly awesome and easy to use (size, quality, speed, intuitive encoding options with lossless, supported in XnView & XnConvert for easy batches). AVIF was terrible in real-world use last I tried (and blurs fine details).
I'm still a big Mozilla & Firefox fan, but a few decisions over past few years seem like they're being dictated or vetoed by a few lofty individuals (while ignoring popular user requests). Sad.
I've read a comparison of several newer file formats (avif, heic, webp) with jpeg-xl. The conclusion was that jpeg-xl was on par in terms of compression, sometimes better and very fast. also it can re-compress jpgs directly.
The big thing, to me, is that it can losslessly encode JPEGs, the dominant format for allllll sorts of archived images. That's huge for migration of images that don't necessarily exist in any other format.
Plus, as I understand it, JPEG XL performs better at those video-derived formats at lossless high resolution applications relating to physical printing and scanning workflows, or encoding in new or custom color spaces. It's designed to work in a broader set of applications than the others, beyond just web images in a browser.
The process began last year by gathering proposals for web technologies that group members will try to harmonize using automated tests.
The goal is to ensure browser implementations of these technologies match specifications in order to make the web platform better for developers.
Mozilla has not jumped on the JPEG XL bandwagon either: The Firefox maker said it's neutral with regard to the technology, citing cost and lack of significant differentiation from other image codecs.
"Overall, we don't see JPEG-XL performing enough better than its closest competitors (like AVIF) to justify addition on that basis alone," said Martin Thomson, distinguished engineer at Mozilla, last year.
And it has since resisted entreaties to reconsider – despite Apple's endorsement last year and recent support from Samsung and apparent interest from Microsoft.
"Chrome is 'against' because of 'insufficient ecosystem interest' and because they want to promote improvements in existing codecs," said Sneyers, pointing to JPEG, WebP, and AVIF.
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JPEG XL supports lossy compression and lossless compression of ultra-high-resolution images (up to 1 terapixel), up to 32 bits per component, up to 4099 components (including alpha transparency), animated images, and embedded previews.
Why 4099 components? Why so many? And why 4099 in particular? 4096+3 with 3 being RGB?
On a side note, 1 Terapixel is just crazy. A square with 1 million pixels has this number of pixels. So, about 1000 of 1080p will fit into this square vertically and about 500 horizontally. How has such eyes to see this all pixel perfectly?
On a side note, 1 Terapixel is just crazy. A square with 1 million pixels has this number of pixels. So, about 1000 of 1080p will fit into this square vertically and about 500 horizontally. How has such eyes to see this all pixel perfectly?
If you zoom in on it (a pretty common thing to do with pictures) enough, most people.
That would be SCI: Miami show zoom, where they can identify a yawning killer by his teeth fillings which image was reflected in the window which image was reflected in the eye of a random person far in the background of a shot.