Search
Converting and Optimizing Images From the Command Line
21.12.2020
Images take up to 50% of the total size of an average web page. And if images are not optimized, users end up downloading extra bytes. And if they’re downloading extra bytes, the site not only takes that much more time to load, but users are using more data, both of which can be resolved, at least...
Three Things You Didn’t Know About AVIF
26.11.2020
AVIF, the file format based on the AV1 video codec, is the latest addition to the next-gen image formats. Early reports and comparisons show good results compared to JPEG and WebP. However, even if browser support is good, AVIF is still on the bleeding edge in regards to encoding and decoding....
Google připravuje obrazový formát WebP 2. Bude lepší než předchůdce, ale zavede schizma
23.11.2020
Je to už deset let, co Google oznámil vznik nového formátu WebP, který se měl stát univerzální náhradou za JPEG, PNG i GIF. Vycházel z videa VP8 a podporoval statický obraz, animace, průhlednost i bezztrátovou kompres, vše s lepším kompresním poměrem než formáty, které měl nahradit. A teď pomalu
GIFS and prefers-reduced-motion
3.11.2020
The <picture> element has a trick it can do where it shows different image formats in different situations. If all you are interested in is formats for the sake of performance, maybe you’d do:
<picture<source srcset="img/waterfall.avif" type="image/avif"<source...
WebP Image Support Coming to iOS 14
24.6.2020
Apple announced a ton of new updates at yesterday’s WWDC20 keynote address, from new hardware to updated applications. There’s lots to gawk at and enough device-envy to go around.
But there’s one little line in the Safari 14 Beta release notes that caught my eye:
Added WebP image...
How to Use JPEG 2000 (JP2) for a Faster Images on iPhone (Sponsored)
21.10.2019
Images Slow Down Websites Images slow down the page-loading performance of many websites. Audit tools like Google’s Lighthouse can quickly tell you how many seconds you can save by optimizing your images. When you are delivering to desktops or android devices running Chrome browser, a quick...
An Almost Ideal React Image Component
21.6.2018
Yes, this is a React component, but regardless if you care about that part or not, the "ideal image component" part could be of interest. There is a lot to consider with how we put images on web pages these days. This deals with:
Placeholder space (and then flexible responsive styles after...