Dmitry Dolzhenko📝 Optimising short screencasts using ffmpeg
Gianni RosatoNew Halide blog post on post-processing for chroma as it is relevant to compression efficiency: https://halide.cx/blog/chroma-handling
Seems like you can get a roughly 2% efficiency improvement with 4:2:0 decoder output just with smarter post-processing for chroma. Pretty neat!
Lou LüederSVT-AV1 4.0.0 is here!
Changelog: https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases/v4.0.0
SVT-AV1-PSY's porting efforts are fully complete, and this release also features huge AVIF improvements. Maybe the most exciting release to date by my standards – SVT-AV1 is finally a real perceptual encoder! #av1 #avif #compression
Changelog: https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases/v4.0.0
SVT-AV1-PSY's porting efforts are fully complete, and this release also features huge AVIF improvements. Maybe the most exciting release to date by my standards – SVT-AV1 is finally a real perceptual encoder! #av1 #avif #compression
Wade TregaskisExtracting embedded images from a PDF
Surprisingly, the best way (that I’ve found) to do this is to use The Unarchiver, a free app from MacPaw (the folks behind SetApp and many other things). It seems to faithfully extract the images as-is, including ICC profiles (which might technically be separate from the image within the PDF, but nonetheless are crucial to the image being extracted correctly).
The primary reason to extract […]
https://wadetregaskis.com/extracting-embedded-images-from-a-pdf/
Charl P. Botha ♡ code, data-*, Emacs, running, humansNew AVIF 1.2 standard with sample transforms for higher bitdepths + guidance on gainmaps for backwards compatible HDR: aomedia.org/blog%20posts...
(I have started experimenting with #AVIF on my personal #blog: cpbotha.net/2025/12/25/w... )
P.S. maybe I'm back on @bsky.app@bsky.brid.gy after 2 month break.
Weekly Head Voices #263: High ...
Weekly Head Voices #263: High ...
AAPL Ch.
arthur.pizzaAnimated #Avif for the Modern Web
https://arthur.pizza/2025/12/animated-avif-for-the-modern-web/
N-gated Hacker News🎉 #Google performs its trademark magic trick—*unkilling* JPEG XL, proving that tech #resurrection is the new innovation! 🎩✨ Meanwhile, JPEG XL is still waiting for its call back to the browser party, while #AVIF smugly hogs the spotlight with Google’s not-so-invisible hand. 🙄🔍
https://tonisagrista.com/blog/2025/google-unkills-jpegxl/ #JPEGXL #techinnovation #browserparty #HackerNews #ngated
https://tonisagrista.com/blog/2025/google-unkills-jpegxl/ #JPEGXL #techinnovation #browserparty #HackerNews #ngated
GripNews🌖 Google 讓 JPEG XL「復活」：經歷波折後，該圖像格式即將成為主流
➤ 從被摒棄到重獲新生：JPEG XL 的逆襲之路
✤ https://tonisagrista.com/blog/2025/google-unkills-jpegxl/
本文回顧了 JPEG XL 圖像格式從被 Google Chromium 團隊放棄到重新獲得支援的曲折歷程。儘管曾因生態系統支持不足而被 Chromium 移除，但隨著 Safari、Firefox 瀏覽器以及 PDF Association 等組織的積極響應，Chromium 團隊最終迴心轉意，撤銷了對 JPEG XL 的棄用標籤。作者認為，JPEG XL 憑藉其無損重新壓縮 JPEG 的能力、對寬色域和 HDR 的支援、超大圖像尺寸限制以及流暢的網頁載入特性，極具潛力成為未來的圖像標準。
+ 太好了！JPEG XL 的功能確實遠超現有格式，尤其是在無損壓縮和 HDR 方面。希望這次 Chromium 的決定能帶來真正改變。
+ 雖然高興 JPEG
#JPEG XL #Chromium #圖像格式 #開源 #WebP #AVIF
➤ 從被摒棄到重獲新生：JPEG XL 的逆襲之路
✤ https://tonisagrista.com/blog/2025/google-unkills-jpegxl/
本文回顧了 JPEG XL 圖像格式從被 Google Chromium 團隊放棄到重新獲得支援的曲折歷程。儘管曾因生態系統支持不足而被 Chromium 移除，但隨著 Safari、Firefox 瀏覽器以及 PDF Association 等組織的積極響應，Chromium 團隊最終迴心轉意，撤銷了對 JPEG XL 的棄用標籤。作者認為，JPEG XL 憑藉其無損重新壓縮 JPEG 的能力、對寬色域和 HDR 的支援、超大圖像尺寸限制以及流暢的網頁載入特性，極具潛力成為未來的圖像標準。
+ 太好了！JPEG XL 的功能確實遠超現有格式，尤其是在無損壓縮和 HDR 方面。希望這次 Chromium 的決定能帶來真正改變。
+ 雖然高興 JPEG
#JPEG XL #Chromium #圖像格式 #開源 #WebP #AVIF