Hacker News with Generative AI: Image Formats

PNG Specification (Third Edition) Is a W3C Proposed Recommendation (w3.org)
Today the Portable Network Graphics (PNG) Working Group published Portable Network Graphics (PNG) Specification (Third Edition) as a W3C Proposed Recommendation.

Web Standards, Image Formats, PNG

5 points by robin_reala 1 day ago | 0 comments

Ubuntu 25.04 Now Ships with JPEG-XL Support Enabled by Default (phoronix.com)
The Ubuntu 25.04 release shipping this month will now feature JPEG-XL image format support out-of-the-box.

Ubuntu, Linux, Image Formats, Software Updates

5 points by ksec 29 days ago | 0 comments

I'd like to take a moment to speak to you about the Adobe PSD format (2009) (github.com/gco)

Image Formats, Software, Computer Graphics

78 points by tosh 62 days ago | 23 comments

How Are Images Stored? A Deep Dive into GIF, PNG, and JPEG (cefboud.com)
This post is me indulging in a rabbit hole. I somehow found myself thinking about images, probably after my recent exploration of some compression schemes. It’s common knowledge that images are either grayscale or RGB, that mixing red, green, and blue creates new colors. But there’s certainly more to storing an image than just aligning three-byte RGB values.

Image Formats, Digital Images, Image Compression, Computer Graphics

5 points by Cef111 106 days ago | 0 comments

JPEG XL: What It Is and Why You Should Care (2024) (petapixel.com)
JPEG XL is a new-generation image file format that recently got a big boost to awareness thanks to native support in the iPhone 16 series smartphones. So what is it, why does it matter, and why should you use it? Who better to ask than one of the people who helped make it a reality?

Image Formats, Technology, Mobile Devices, Photography

42 points by ksec 114 days ago | 8 comments

The maximum pixel dimensions of a WebP image is 16383 x 16383 (developers.google.com)
WebP is a method of lossy and lossless compression that can be used on a large variety of photographic, translucent and graphical images found on the web.

WebP, Image Compression, Image Formats

4 points by surprisetalk 203 days ago | 2 comments

Ask HN: Why aren't more apps using WebP format? (ycombinator.com)
WebP has been around for a while now, offering better compression and performance over JPEG and PNG. So why haven't more apps fully adopted it yet? Are there hidden compatibility issues, performance downsides, or just inertia in the industry? Curious to hear if the switch to WebP has made a difference for anyone here, especially for mobile performance.

Web Development, Image Formats, Mobile Performance

11 points by dngit 205 days ago | 20 comments

How JPEG XL compares to other image codecs (cloudinary.com)
A year ago, I talked about JPEG XL at ImageCon 2019. It’s time for an update.

Image Compression, Image Formats, JPEG XL

156 points by bentocorp 213 days ago | 71 comments

PNG can be Animated Wait WTF? APNG file format (wikipedia.org)
Animated Portable Network Graphics (APNG) is a file format which extends the Portable Network Graphics (PNG) specification to permit animated images that work similarly to animated GIF files, while supporting 24 or 48-bit images and full alpha transparency not available for GIFs. It also retains backward compatibility with non-animated PNG files.

Image Formats, Animation, PNG, GIF, Technology

12 points by fussylogic 241 days ago | 1 comments

iPhone 16 Pro lets users capture ProRAW photos in JPEG-XL format (9to5mac.com)
Even before the launch of the iPhone 16 on Monday, 9to5Mac had already reported that the new Pro models would have the ability to take photos in JPEG-XL format.

iPhone, Photography, Image Formats, Apple

44 points by ksec 251 days ago | 62 comments

The Windows Console gets support for Sixel images (github.com/microsoft)

Windows, Image Formats, Programming, Open Source

53 points by zadjii 326 days ago | 37 comments

LZW and GIF explained (eecis.udel.edu)

Data Compression, Image Formats, Computer Science

92 points by networked 364 days ago | 15 comments

Chromium jpegxl issue closed as won't fix (chromium.org)

Chromium, Open Source, Image Formats, Software, Bug Reports

68 points by thayne 369 days ago | 35 comments

500 Byte Images: The Haiku Vector Icon Format (2016) (leahhanson.us)

Image Formats, Design, Web Development, Vector Graphics

145 points by smartmic 389 days ago | 41 comments