Internet Technologist based in London, UK
All content is licensed under CC BY-NC-SA 4.0
| Website | https://lovell.info |
| GitHub | https://github.com/lovell |
A huge thank you to everyone that has donated money to help maintain the open source image processing software libvips.
For those who work at companies that support open source software via GitHub Sponsors, you can now do so at https://github.com/sponsors/libvips
This is linked to the existing @opencollective at https://opencollective.com/libvips that we'll continue to use to help support the libvips ecosystem, both upstream and downstream.
Someone has created an imposter account pretending to be me. I won't link to it, but it uses my first name and the first 4 letters of my surname.
I've blocked and reported it. Please don't follow it.
/cc @grifferz @hasanhaja
The maintainers of the Node.js `prebuild` and `prebuild-install` packages, with over 10 million downloads each week, are planning to deprecate them shortly.
This is likely to impact a few other popular packages that depend upon them, including a couple of third party packages that wrap SQLite.
@swithinbank Re: "detect if an image is really *using* its alpha channel", this feature is available via:
const { isOpaque } = await sharp(input).stats()
@eeeps @jaffathecake Yes, there's no sign of libjxl's multi-threaded API in WebKit https://github.com/WebKit/WebKit/blob/main/Source/WebCore/platform/image-decoders/jpegxl/JPEGXLImageDecoder.cpp
Other performance-related factors here might be that the current WebKit logic first fully decodes a JPEG-XL image into memory then copies the entire thing pixel-by-pixel into another bit of memory then, because of the embedded ICC profile, hands over to lcms to convert pixel values.
If you need to parse untrusted Content-Type headers in high performance TypeScript or JavaScript code then you may be interested in my old 2013-era media-type package, which has now been brought up to date for modern use and the latest 2025 RFC9694 guidelines.
https://www.npmjs.com/package/media-type
It can now safely parse and format Media Types ~50% faster than runtime-provided MIMEType classes and is a drop-in replacement, complete with TypeScript declarations and dual ESM/CommonJS exports.
Parse and validate RFC6838/RFC9694 media types, anything from 'text/plain' to 'application/vnd.company.app.entity-v2+xml;charset=utf8'. Latest version: 1.0.0, last published: 17 hours ago. Start using media-type in your project by running `npm i media-type`. There are 31 other projects in the npm registry using media-type.
