Hacker News Reader

computerbusteron Jpegli: A New JPEG Encoder

From libjpeg to libjpeg-turbo, then mozjpeg, and now jpegli, is this another great leap forward in coding efficiency? Jpegli compared to mozjpeg, WebP, AVIF & JXL.

computerbusteron macOS 14 will support JPEG XL

It can be, but not perfectly.

Firefox: https://addons.mozilla.org/en-US/firefox/addon/jxl/?utm_sour...

Chrome: https://chrome.google.com/webstore/detail/add-jxl-support/kh...

computerbusteron macOS 14 will support JPEG XL

https://giannirosato.com/blog/post/nvenc-v-qsv/ This site has WASM-decoded JXL images using JXL.js. Native support would be much faster, & trying to decode much larger images with JXL.js doesn’t work very well.

computerbusteron Nvenc vs. QSV: Who Has the Best Hardware AV1 Encoder?

You're right, I should look into this. Thanks for linking.

computerbusteron Nvenc vs. QSV: Who Has the Best Hardware AV1 Encoder?

Using SSIMULACRA2, I've compared Intel's QuickSync Video to Nvidia's NVENC encoder across Linux & Windows. They compete against other dedicated encoding hardware for different codecs across different GPUs, including an Intel iGPU.

computerbusteron JPEG-XL vs. AVIF and Others: 27 Images Compared

I think the most interesting takeaway here is that while JXL continues to face unfair treatment from web browser vendors, jpegli is a really fascinating development that performs very closely to AVIF at high quality in the dataset. I'd like to test jpegli with the XYB colorspace in the future to see how much better it is compared to RGB, but even with the RGB handicap it still looks very promising.

computerbusteron JPEG-XL vs. AVIF and Others: 27 Images Compared

As I mentioned in the article, Thorium is a Chromium-based browser that fully supports JPEG-XL. Here's the libjxl patch that can be ported to other Chromium-based browsers: https://github.com/Alex313031/thorium-libjxl

computerbusteron JPEG-XL vs. AVIF and Others: 27 Images Compared

You're probably right that I shouldn't have been so rash, I'm sorry for the omission & my despondent attitude toward HEIC. My enthusiasm is sullied by the presence of royalties & a non-existent web presence because of these royalties which I consider reasonable (where JXL's lack of web presence is questionable). In the future, I may do a similar test and include HEIC, but currently I believe it fares worse than AVIF almost across the board. I'd be willing to see whether or not I'm correct in saying this, though.

I should include that under "Takeaway," I do say that " ... this is a non-scientific test," & it shouldn't be considered objective despite the use of metrics. While I find SSIMULACRA2 correlates very well with what my eyes see with these images & most other images, 27 landscape/architecture images aren't enough to draw any objective conclusions here & I'd need to do more testing in the future to produce research-quality work.