Hi, I'm the developer of Rune. Your idea is very interesting, and designing a phone like this is indeed my dream. However, it feels a bit too far off at the moment. I'm currently trying to build it on a Raspberry Pi. At the very least, I can create something similar to a Zune MP3 player, which is something I've always wanted to pursue.
That’s good news. I’ve watched a really good video in the last weeks about JPEG XL advantages, if you want to learn a bit more: https://youtube.com/watch?v=FlWjf8asI4Y
This may be a naive question but can't we have the features of JPEG XL combined with the compression algorithm of AVIF? Why does it have to be one or the other? Size clearly matters, especially for the majority of the world's population who do not have access to super fast internet and TBs of storage. It's definitely a luxury not having to care about file sizes.
"Worse" in what sense? There are of course always trade-offs when compressing. In terms of size though even the reviewer from the above video - who says he much prefers JPEG XL - claims his AVIF compression lead to a very significant reduction in file size when testing his family photos. At a loss of detail that's negligible, or basically invisible for practical every-day purposes.
This seems to track with other comparisons I've read as well. Some claim even larger size reductions, depending on the source files. The main issue with AVIF seems to be slow loading, which granted is a real problem for web use in places with slow connections (as is file size!). Like implied I'm not an expert, I'm just wondering why AVIF can't have faster loading with a preview function like JPEG has. Is there a technical reason?
Worse as in not compressing as well. As I said, at high fidelity or lossless. At lower quality levels, AVIF files are smaller and JXL files are bigger. At higher quality levels, JXL files are smaller and AVIF files are bigger. At lossless, AVIF is worse than PNG, while JXL is much better.
> Like implied I'm not an expert, I'm just wondering why AVIF can't have faster loading with a preview function like JPEG has.
JPEG is fast to load regardless of its progressive loading feature. So there are really two things at play, speed of decoding, and whether partially loaded files can give you a preview. The slow decoding of AVIF is inherent to the design of the format, but different encoding choices can lead to different decoding speed. IIRC, the lower the encoding quality, the faster the decoding can be. And as for progressive display, that simply wasn't considered when AV1 was designed. You can do something funny and store two AVIF frames, one low quality and maybe lower resolution, followed by the full image, but then you're storing two images just to get a preview.
You don't need to store two whole independent images. The high quality image can predict from the low quality image, and the low quality image can be a lower resolution, too. It is less efficient than storing one image, but more efficient than storing two independent images.
I think the fact this made it to the front page shows how many were unaware of the scanner in the files app. I have multiple times looked into ways to scan on iPhone and have only found the Notes app, which is kinda klunky, and Microsoft Lens.
Pressing and holding the Files icon on the iOS home screen allows you to directly access the scanning feature.
Pretty handy! I didn’t know this feature existed, and the scanner app I had been using stopped working a couple months ago and I haven’t been able to find a replacement that I was happy with.
On the latest iOS update, searching for the Files app also returns a shortcut to the scanner. Weirdly, searching for "scan" or similar doesn't return it... The icon is similar in design to the control centre so you'd think it could be added there, but again, it's unavailable...
TIL it’s in the files app. I always use the notes app for this. You can either long-press on notes and tap scan document or go into a random note, scan a document, and export it as pdf from there
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