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Lossless Float Image Compression

news.ycombinator.com Unknown 2025-07-25 18:12:21

Back in 2021 I looked at OpenEXR lossless compression options (and I think my findings led a change of the default zip compression level, as well as change of the compression library from zlib to libdeflate. Yay blogging about things!). Then in 2023 I looked at losslessly compressing a bunch of floating point data, some of which might be image-shaped. Well, now a discussion somewhere else has nerd-sniped me to look into lossless compression of floating point images, and especially the ones that

Topics: compression data exr jpeg xl

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These XR glasses gave me a 200-inch screen to work with - now I'm wondering why I still need monitors

zdnet.com Matthew Miller 2025-08-02 01:14:00

ZDNET's key takeaways The Xreal One Pro is available for $649, and the Xreal Eye accessory is priced at $99. Thanks to the X1 chip, no special software is required for advanced functionality, the FOV is the best available, the glasses are comfortable, and the display is bright and clear. The glasses are rather expensive, and two sizes for your eye width make them fit best for individuals. View now at Us.shop.xreal For the past month, I have been wearing the new Xreal One Pro on the airplane,

Topics: eye glasses pro xr xreal

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These XR glasses gave me a 152-inch screen to work and travel with - and I can't go back

zdnet.com Matthew Miller 2025-08-07 05:00:15

ZDNET's key takeaways The Viture Luma Pro XR glasses are available now for $499. They have higher resolution than their predecessor pair, they're comfortable thanks to the temple hinge and magnetic nose pads, and the SpaceWalker feature is awesome. Certain features require multiple press functions, and there are fewer myopia adjustments. View now at Amazon If you ever see me on a plane or commuter train, you'll find me with a pair of XR glasses either watching videos or working with an expand

Topics: glasses luma pro viture xr

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These XR glasses gave me a 135-inch screen to work from while traveling - and they're $150 off

zdnet.com Matthew Miller 2025-08-07 13:45:00

ZDNET's key takeaways The Viture Pro XR glasses are available for a retail price of $499 in black. The display is larger, brighter, and smoother with the same form factor, fit, and excellent construction. An additional accessory is needed for devices without USB-C and multiple pieces are required for gaming. View now at Amazon Right now, you can save $150 on the Viture Pro XR glasses on Amazon, bringing the price down to $349. After buying the Viture One XR glasses early last year, they have

Topics: display glasses pro viture xr

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How did X-Rays gain mass adoption?

news.ycombinator.com Adith Arun 2025-08-08 17:18:30

At the University of Würzburg, Wilhelm Röntgen took the first X-Ray (XR) and presented his work “On a New Kind of Rays” in December 1985 which was printed in January 1986. In January 1986, it was reprinted in English in Nature, The Electrician, Lancet, and BMJ. A lot of literature was written about XR’s in the months to follow. News outlets from across the world picked up on this story writing that “a professor from Wurzburg had successfully used a new type of light to take a photograph of a set

Topics: like new patients xr xrs

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Review: XREAL One’s are incredibly versatile, and they really come to life with the iPad Pro

9to5mac.com Michael Burkhardt 2025-08-14 17:28:25

I’ve been reviewing one of XREAL’s more recent releases of AR glasses: the XREAL One’s. These are certainly the most versatile pair of AR glasses I’ve tried out so far, and they actually really come to life somewhere you wouldn’t expect: the M4 iPad Pro running iPadOS 26. XREAL One come in at just under 3 ounces (84 grams), making them easy to just carry around. Why I enjoy them Typically, when you think about plug-in AR glasses, you’re using it for one of two things. It’s either to mirror you

Topics: display glasses ipad just xreal

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The Palette of the Medieval North

news.ycombinator.com Winther 2025-08-15 02:37:09

The selection of fragments contained many of those pigments already noted in the extensive analytical work conducted elsewhere in Europe7,8,9,10,11,12,13,14, such as azurite, red lead, vermilion, orpiment, and copper-based greens. Even though these fragment pages might appear rather simple in terms of their colour scheme, the analysis has shown a greater variation and complexity than first meets the eye. This observation will be further elaborated below where findings are listed by colour. A sum

Topics: copper fr red used xrf

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My favorite XR glasses for traveling got a peformance boost - and a big discount

zdnet.com Matthew Miller 2025-08-21 12:00:14

ZDNET's key takeaways The Viture Pro XR glasses are available for a retail price of $499 in black. The display is larger, brighter, and smoother with the same form factor, fit, and excellent construction. An additional accessory is needed for devices without USB-C and multiple pieces are required for gaming. View now at Amazon Right now, you can save $60 on the Viture Pro XR glasses on Amazon, bringing the price down to $399. After buying the Viture One XR glasses early last year, they have

Topics: display glasses pro viture xr

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Meta’s Xbox-Branded Quest 3S Just Sold Out for All the Wrong Reasons

gizmodo.com James Pero 2025-08-21 07:00:47

Everyone loves limited-edition stuff. There’s Sony’s 30th anniversary PS5, or Analogue’s many limited edition Pocket handhelds, or— I don’t know—the Shamrock f***ing Shake. But there’s one type of person who loves limited-edition stuff more than your average consumer, and it’s a scalper. For proof of that, see Meta’s recently released Xbox-branded Quest 3S. See Meta Quest Xbox Edition at Best Buy In case you missed it, Meta’s new limited-edition Quest 3S bundle just recently sold out, which on

Topics: edition just meta xbox xr

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Samsung’s Project Moohan XR headset could be similar to Vision Pro in more ways than one

androidauthority.com Unknown 2025-08-25 17:33:31

Lanh Nguyen / Android Authority TL;DR Samsung will reportedly procure some displays for its upcoming Project Moohan headset from Sony. Sony also produced displays for the Apple Vision Pro. Samsung’s display arm will also develop some of the headset’s displays, in a bid to cut dependence on Sony. Samsung and Google are openly collaborating to create the first extended reality (XR) headset based on Android. The headset, codenamed Project Moohan, is expected to be unveiled some time in 2025, an

Topics: displays headset samsung sony xr

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These XR glasses gave me a 220-inch screen to work with - and I can't go back

zdnet.com Matthew Miller 2025-09-01 19:10:31

ZDNET's key takeaways The Xreal One Pro is available for $649 ($599 special pre-order price through the end of June), and the Xreal Eye accessory is priced at $99. Thanks to the X1 chip, no special software is required for advanced functionality, the FOV is the best available, the glasses are comfortable, and the display is bright and clear. The glasses are rather expensive, and two sizes for your eye width make them fit best for individuals. View now at Us.shop.xreal For the past two weeks,

Topics: eye glasses pro xr xreal

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I Tried the Future of Smart Glasses at WWDC. They Weren't Made by Apple

cnet.com See Full Bio 2025-09-05 16:00:04

On a bright sunny day in Cupertino, California, I crammed into my seat, unlocked my laptop, connected to Wi-Fi and checked in on Slack. Apple's WWDC keynote was about to begin. This time, however, I added a new step to my live event coverage routine. I plugged the Xreal One Pro glasses into my MacBook and activated the dimmer. They became my smart display-enabled sunglasses. For the next 2 hours, I covered Apple's announcements wearing Xreal's display glasses, and they worked better than I expe

Topics: camera display glasses work xreal

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Xreal One expands AR glasses features with modular camera | review

venturebeat.com Dean Takahashi 2025-09-08 05:00:00

Xreal, a leader in consumer augmented reality (AR) glasses, will start selling its Xreal One Pro, the company’s most advanced AR glasses yet, beginning July 1. Xreal is finishing deliveries for its more than 10,000 pre-orders of Xreal One Pro and is offering special pre-order pricing through the end of June. I’ve tried it out and have had some novel experiences using it. Built for power users, creators, and productivity seekers, Xreal One Pro features the industry’s largest field of view (FOV)

Topics: ar glasses pro screen xreal

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These XR glasses gave me a 200-inch screen to work with - and have replaced my monitors

zdnet.com Matthew Miller 2025-09-08 05:00:14

ZDNET's key takeaways The Xreal One Pro is available for $649 ($599 special pre-order price through the end of June), and the Xreal Eye accessory is priced at $99. Thanks to the X1 chip, no special software is required for advanced functionality, the FOV is the best available, the glasses are comfortable, and the display is bright and clear. The glasses are rather expensive, and two sizes for your eye width make them fit best for individuals. View now at Us.shop.xreal For the past 10 days, I

Topics: eye glasses pro xr xreal

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4 Best Smart Glasses (2025), Tested and Reviewed

wired.com Simon Hill 2025-09-08 05:00:00

The idea of smart glasses has been around for decades, but the technology is finally catching up. The best smart glasses can entertain, guide us with directions, help us document our lives, and even teach us about the world around us, but the category is incredibly varied, and not all smart glasses have the same features. A computer you wear on your face has obvious potential, not least because it leaves your hands free. As a new wave of smart glasses arrives, we got sneak-peek demos of several

Topics: glasses reality screen smart xr

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Your phone won’t be powering Xreal’s upcoming Android XR glasses

androidauthority.com Unknown 2025-09-17 19:40:08

TL;DR Xreal’s Android XR glasses will come with a puck-like processing device. The puck will feature an unspecified Qualcomm Snapdragon chip. The glasses will have the largest screen the company has ever made. There’s been plenty of talk about Google, Apple, and Meta all working on AR glasses, but they aren’t the only players in the game. Xreal is currently working on its own pair of AR glasses, known as Project Aura. Other than the fact that they’ll run on Android XR, not much is known about

Topics: aura device glasses puck xreal

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Latest Tech News

Lossless Float Image Compression

These XR glasses gave me a 200-inch screen to work with - now I'm wondering why I still need monitors

These XR glasses gave me a 152-inch screen to work and travel with - and I can't go back

These XR glasses gave me a 135-inch screen to work from while traveling - and they're $150 off

How did X-Rays gain mass adoption?

Review: XREAL One’s are incredibly versatile, and they really come to life with the iPad Pro

The Palette of the Medieval North

My favorite XR glasses for traveling got a peformance boost - and a big discount

Meta’s Xbox-Branded Quest 3S Just Sold Out for All the Wrong Reasons

Samsung’s Project Moohan XR headset could be similar to Vision Pro in more ways than one

These XR glasses gave me a 220-inch screen to work with - and I can't go back

I Tried the Future of Smart Glasses at WWDC. They Weren't Made by Apple

Xreal One expands AR glasses features with modular camera | review

These XR glasses gave me a 200-inch screen to work with - and have replaced my monitors

4 Best Smart Glasses (2025), Tested and Reviewed

Your phone won’t be powering Xreal’s upcoming Android XR glasses

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