MHLoppy
@MHLoppy@fedia.io
Currently studying CS and some other stuff. Best known for previously being top 50 (OCE) in LoL, expert RoN modder, and creator of RoN:EE's community patch (CBP).
(header photo by Brian Maffitt)
- Comment on Interesting Intel tech for rendering graphics 3 days ago:
I actually think this video is doing a pretty bad job of summarizing the practical-comparison part of the paper.
If you go here you can get a GitHub link which in turn has a OneDrive link with a dataset of images and textures which they used. (This doesn't include some of the images shown in the paper - not sure why and don't really want to dig into it because spending an hour writing one comment as-is is already a suspicious use of my time.)
Using the example with an explicit file size mentioned in the video which I'll re-encode with Paint.NET trying to match the ~160KB file size:
- Original PNG (5,725,123 bytes) https://files.catbox.moe/l2wsxr.png
- Optimized PNG (5,579,693 bytes) https://files.catbox.moe/2dh00n.png
- Lossless WebP (4,504,946 bytes) https://files.catbox.moe/hiephv.webp
- Lossy WebP; default preset, quality 13 (162,820 bytes) https://files.catbox.moe/jnv4tp.webp
- JPEG XL; quality 12, effort 7 (164,859 bytes) https://files.catbox.moe/fylcqa.jxl (your browser probably can't view this image)
- AVIF; lossless alpha compression [shouldn't matter], quality 44, very slow preset, 4:2:0 chroma subsampling, preserve existing tile size, do not use premultiplied alpha (164,855 bytes) https://files.catbox.moe/u7q7dn.avif
Hadriscus has the right idea suggesting that JPEG is the wrong comparison, but this type of low-detail image at low bit rates is actually where AVIF rather than JPEG XL shines. The latter (for this specific image) looks a lot worse at the above settings, and WebP is generally just worse than AVIF or JPEG XL for compression efficiency since it's much older. This type of image is also where I would guess this type of compression / reconstruction technique also does comparatively well.
But honestly, the technique as described by the paper doesn't seem to be trying to directly compete against JPEG which is another reason I don't like that the video put a spotlight on that comparison; quoting the paper:
We also include JPEG [Wallace 1991] as a conventional baseline for completeness. Since our objective is to represent high-resolution images at ultra-low bitrates, the allow-able memory budget exceeds the range explored by most baselines.
Most image compression formats (with AVIF being a possible exception) aren't tailored for "ultra-low bitrates". Nevertheless, here's another comparison with the flamingo photo in the dataset where I'll try to match the 0.061 bpp low-side bit rate target (if I've got my math right that's 255,860.544 bits):
- Original PNG (2,811,804 bytes) https://files.catbox.moe/w72nsv.png
- AVIF; as above but quality 30 (31,238 bytes) https://files.catbox.moe/w2k2eo.avif
- JPEG XL could not go below ~36KB even at quality 0 when using my available encoder, so I considered it to fail this test
- JPEG (including when using MozJPEG, which is generally more efficient than "normal" JPEG) and WebP could only hit the target file size by looking garbage, so I considered them to fail this test out of hand
(Ideally I would now compare this image at some of the other, higher bpp targets but I am le tired.)
It looks like interesting research for low bit rate / low bpp compression techniques and is probably also more exciting for anyone in the "AI compression" scene, but I'm not convinced about "Intel Just Changed Computer Graphics Forever!" as the video title.
As an aside, every image in the supplied dataset looks weird to me (even the ones marked as photos), as though it were AI-generated or AI-enhanced or something - not sure if the authors are trying to pull a fast one or if misuse of generative AI has eroded my ability to discern reality 🤔
- Comment on ClockBench: Even the best AI models can't reliably read the clock 3 days ago:
Really wish they published the whole dataset. They don't specify on the page or in the paper what the full set was like, and the GitHub repo only has one of the easy-to-read ones. If >=10% of the set is comprised of clock faces designed not to be readable then fair enough.
- Comment on ClockBench: Even the best AI models can't reliably read the clock 4 days ago:
The human level accuracy is less than 90%!?
- Comment on xkcd #3141: Mantle Model 5 days ago:
The loss brainrot has taken another victim 😔
- Comment on A goodbye to kbin ... 1 week ago:
the kbin.social domain expires in a few days, on 10 September
Looks like someone might've bought the domain?
- Comment on RFK Jr. Blames violent video games for Mass Shootings. 1 week ago:
- Comment on What if the Moon were made entirely of electrons? 1 week ago:
Poor proton-Earth, barely mentioned at all :'(
- Comment on WhatsApp's new AI feature lets you rephrase and adjust the tone of your messages | TechCrunch 3 weeks ago:
Anecdotally, quite a lot of users vote "selfishly" and don't care that downvoting reduces visibility.
allandlocalfeeds also fall victim to people voting as if these are their own personal curated feeds.And I hate it 🫠
- Comment on Our Channel Could Be Deleted - Gamers Nexus 3 weeks ago:
"We're going to collect as much data about you as we can to sell to advertisers"
That's a rather pessimistic interpretation of a privacy policy that starts with this:
The spirit of the policy remains the same: we aren’t here to exploit you or your info. We just want to bring you great new videos and creators to enjoy, and the systems we build to do that will sometimes require stuff like cookies.
and which in section 10 (Notice for Nevada Residents) says:
We do not "sell" personal information to third parties for monetary consideration [as defined in Nevada law] [...] Nevada law defines "sale" to mean the exchange of certain types of personal information for monetary consideration to another person. We do not currently sell personal information as defined in the Nevada law.
So yes, they may be selling personal information by some other definition I suppose (I don't know the Nevada law in question). But it feels extremely aggressive to label it a "shithole" that "collect[s] as much data about you as we can to sell to advertisers" based on the text of the privacy policy as provided.
- Comment on Our Channel Could Be Deleted - Gamers Nexus 3 weeks ago:
I guess perspective here depends on your anchoring point. I'm anchoring mostly on the existing platform (YouTube), and Nebula's policy here looks better (subjectively much better) than what runs as normal in big tech. If your anchor is your local PeerTube instance with a privacy policy that wasn't written by lawyers, I can see how you'd not be a fan.
However beyond being in legalese I'm not sure what part of it you find so bad as to describe it as a shithole. Even compared to e.g., lemmy.world's privacy policy Nebula's looks "good enough" to me. They collect slightly more device information than I wish they did and are more open to having/using advertising partners than I had expected (from what I know of the service as someone who has never actually used it) but that's like.. pretty tame compared what most of the big platforms have.
- Comment on Our Channel Could Be Deleted - Gamers Nexus 3 weeks ago:
Nebula is a shithole, just have a glance at their privacy policy.
It looks pretty run of the mill to me?
- Still throwing shrimp on the barbie: why is Tourism Australia’s advertising stuck in 1984?theconversation.com ↗Submitted 5 weeks ago to australia@aussie.zone | 10 comments
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- [Satire] Australia agrees to accept US beef if US agrees to accept Australian beef Wellingtontheshovel.com.au ↗Submitted 1 month ago to australia@aussie.zone | 1 comment
- Carolina Wilga search triggers uncomfortable questions for families of missing Indigenous menwww.abc.net.au ↗Submitted 2 months ago to australia@aussie.zone | 7 comments
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- 1 in 3 men report using intimate partner violence. Here’s how we can better protect women – and help mentheconversation.com ↗Submitted 3 months ago to australia@aussie.zone | 4 comments
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