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Progressive decoding: JPEG vs JPEG XL vs AVIF

Jon Sneyers · demo · Watch on YouTube

Audio & video engineeringInformation theory & signal processingWeb development

What it is

A short side-by-side demo of a large image loading over a slow connection in JPEG, progressive mozjpeg, JPEG XL and AVIF. It shows how each codec renders partial data.

Why Hacker News recommends it

HN uses it as visual evidence that JPEG XL decodes progressively while AVIF shows nothing until fully loaded.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2021, last 2026

What HN commenters said

  1. “There's more on the same channel, generation loss ones are really interesting.”

    Compares progressive decoding of jpeg, jxl and avif

    149765, 2024-03 · Recommendation · in “JPEG XL and the Pareto Front”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: jpeg xl, avif, progressive decoding, image compression, web performance

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