this post was submitted on 19 Dec 2023
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[–] IamRoot@sh.itjust.works 35 points 11 months ago (2 children)
[–] LostXOR@kbin.social 46 points 11 months ago* (last edited 11 months ago) (2 children)

It losslessly compressed ~150GB of my PNGs to ~75GB, so I'd say it's definitely better space-wise.

[–] cryptiod137@lemmy.world 13 points 11 months ago (1 children)

It's absolutely not loseless at any kind of quality past web content

[–] LostXOR@kbin.social 62 points 11 months ago* (last edited 11 months ago)

The WebP format supports fully lossless compression in addition to lossy compression. I used the lossless mode for my images.

[–] IamRoot@sh.itjust.works 5 points 11 months ago (2 children)

Might want to check your math.

[–] LostXOR@kbin.social 19 points 11 months ago (1 children)

What do you mean? That's the total file size of the images before and after I converted them to webp.

[–] IamRoot@sh.itjust.works 2 points 11 months ago (1 children)

How is that possible when google says it is 26% smaller?

[–] LostXOR@kbin.social 40 points 11 months ago (3 children)

Depending on the content of the image, the compression ratio can vary a lot. The 26% figure is probably for "normal" photos. My images are mostly a few shades of black with a few white pixels (using a camera as a radiation detector) and I guess WebP is way better at compressing that than PNG.

[–] brbposting@sh.itjust.works 5 points 11 months ago (1 children)

using a camera as a radiation detector

So… detected any yet?

[–] LostXOR@kbin.social 3 points 11 months ago* (last edited 11 months ago) (2 children)

Yep! Here's a few hours of combined exposure of the radiation from an americium source from a smoke detector.
image

[–] XpeeN@sopuli.xyz 2 points 11 months ago

If you'd upload this image with no description I'd be sure it's a photo of stars in the sky lol

[–] brbposting@sh.itjust.works 1 points 11 months ago
[–] dubyakay@lemmy.ca 4 points 11 months ago (1 children)

using a camera as a radiation detector

I need to hear more

[–] LostXOR@kbin.social 2 points 11 months ago

I wanted to see if I could detect the radiation from a small sample of americium-241 that I pulled out of a smoke detector, so I put a Pi camera with no lens facing it and took exposures for a couple hours. After combining them and removing dead pixels I ended up with tons of tiny white specks where radiation had hit the camera sensor. I linked the final image below, and here's a timelapse video (compositing newer frames onto older frames to keep the radiation specks). video

[–] IamRoot@sh.itjust.works 4 points 11 months ago
[–] elbarto777@lemmy.world 11 points 11 months ago (1 children)

What? Why? I see one number, I see another number, I report both numbers and because it's not what you're expecting, then "it must be my math skills"?

How does that make sense in any context?

[–] IamRoot@sh.itjust.works 4 points 11 months ago (1 children)

Who are you? I didn’t tell you anything.

[–] elbarto777@lemmy.world 5 points 11 months ago
[–] mholiv@lemmy.world 5 points 11 months ago (1 children)

Yes.

(Ok there might be a lossy mode but that is barely better than jpg via mozjpeg)

[–] IamRoot@sh.itjust.works 10 points 11 months ago (1 children)
[–] mholiv@lemmy.world 5 points 11 months ago (2 children)
[–] IamRoot@sh.itjust.works 9 points 11 months ago (2 children)
[–] mholiv@lemmy.world 18 points 11 months ago (1 children)

26% smaller at the exact same quality is better.

[–] IamRoot@sh.itjust.works 7 points 11 months ago (2 children)

Not if people can’t view or save them. PNG and JPEG are superior.

[–] Neato@kbin.social 20 points 11 months ago (2 children)

That's a problem with adoption not the format.

[–] IamRoot@sh.itjust.works 7 points 11 months ago (1 children)
[–] Neato@kbin.social 9 points 11 months ago

Bad analogy. That required hardware and factories to make it. I have several programs that deal with webp already.

[–] Dieinahole@kbin.social 3 points 11 months ago (4 children)

If the only advantage is that it's a smaller file, that's absolutely no advantage at all.

How cheap is storage these days?

[–] Carnelian@lemmy.world 9 points 11 months ago

You could argue it is a small advantage, but you cannot say it is not an advantage.

I would contend the advantage is actually quite significant. From time to time I am inside some building with poor cell service, causing images to take longer to load. 26% smaller images would load noticeably faster in these poor conditions

[–] blandfordforever@lemm.ee 8 points 11 months ago

You've yet to suggest a convincing disadvantage other than a lack of support. This will be a problem with anything new until it is widely adopted.

[–] Neato@kbin.social 5 points 11 months ago

Some reports is that is saves space by half. that's a LOT of bandwidth. And for storage? It's cheaper now but as storage and bandwidth increases, so does the size of media. Higher def images and videos can now be easily and quickly shared so they are. Being able to decrease most images by half is an insanely huge advantage.

[–] mholiv@lemmy.world 7 points 11 months ago (1 children)
[–] IamRoot@sh.itjust.works 3 points 11 months ago

What do you think the meme OP posted means?

[–] nonailsleft@lemm.ee 1 points 11 months ago

That's what she said!! Hahaha amirite guys

[–] snooggums@kbin.social 2 points 11 months ago (1 children)
[–] SatansMaggotyCumFart@lemmy.world 2 points 11 months ago

That’s what my ex used to tell me until she got cancer and passed away.