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submitted 2 years ago by [email protected] to c/[email protected]
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[-] [email protected] 35 points 2 years ago
[-] [email protected] 46 points 2 years ago* (last edited 2 years ago)

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

[-] [email protected] 4 points 2 years ago

Might want to check your math.

[-] [email protected] 19 points 2 years ago

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

[-] [email protected] 1 points 2 years ago

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

[-] [email protected] 40 points 2 years ago

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.

[-] [email protected] 5 points 2 years ago

using a camera as a radiation detector

So… detected any yet?

[-] [email protected] 3 points 2 years ago* (last edited 2 years ago)

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

[-] [email protected] 2 points 2 years ago

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

[-] [email protected] 1 points 2 years ago
[-] [email protected] 4 points 2 years ago
[-] [email protected] 4 points 2 years ago

using a camera as a radiation detector

I need to hear more

[-] [email protected] 2 points 2 years 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

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this post was submitted on 19 Dec 2023
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