Practical guide to the <img> element: from the basics to LCP
joanleon.dev/en/guia-prac...
#WebPerf #ImagePerf #Performance #LCP #CoreWebVitals
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#ImagePerf
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Posts tagged #ImagePerf
Guía práctica del elemento <img>: de lo básico a LCP
joanleon.dev/posts/guia-p...
#WebPerf #ImagePerf #Performance #LCP #CoreWebVitals
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How to optimize SVG files: A complete guide for beginners
penpot.app/blog/how-to-... by @laurakalbag.bsky.social
#WebPerf #ImagePerf #SVG #Image
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Optimize images for sustainability
"Ensure images, if required, are optimized, correctly formatted, and sized, with lazy loading as appropriate, and are managed effectively." - via @inesakrap.bsky.social's talk at @perfnow.nl
w3c.github.io/sustainablew...
#PerfNow #WebPerf #ImagePerf
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Image format comparison: JPEG vs. PNG vs. WEBP vs. AVIF
Great deep-dive into how image formats stack up — JPEG, PNG, WebP & AVIF — comparing size, quality & compression efficiency. 📸📊
A must-read for designers & web devs!
photutorial.com/image-format...
#Image #Performance #ImagePerf
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GitHub Actions bot comment showing that images were automatically compressed by Calibre’s image-actions. The comment reports a 47.1% reduction in image size, saving 104.46 KB. A table displays one example file (‘Screen Shot 2020-09-17 at 3.29.33 pm.png’) reduced from 221.87 KB to 117.41 KB. It notes that 348 images did not require optimisation, and includes a ‘View diff’ link for visual comparison.
#WebPerfTip
If you need a GitHub Action to automatically compresses JPEGs, PNGs and WebPs in pull requests, IMHO this is the best option
#WebPerf #ImagePerf #PerfTools #Image
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Screenshot of an SVG file that includes an embedded image using base64 encoding. The image is inserted directly within the <image> tag using the xlink:href attribute, rather than linking to an external file. This means the entire image is stored inside the SVG as base64 data.
#WebPerfTip Avoid embedding raster images directly in SVGs
ℹ️ In this case, the image is a vector graphic
#WebPerf #Perfomance #WPO #ImagePerf
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Spectral images have a significant memory footprint because they store a large number of spectral bands. In this paper, we propose a lossy compression scheme that significantly reduces their file size with a negligible loss in quality. We use a cosine transform and separate overall brightness from the shape of the spectrum. The resulting channels are stored using JPEG XL, which provides state-of-the-art lossy compression.
Compression of Spectral Images using Spectral JPEG XL
jcgt.org/published/00...
#Image #ImagePerf #WebPerf #JpegXL
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Looking how browsers choose the right image to load with srcset, dpr, and sizes
iankduffy.com/articles/loo... bu @duffeh.bsky.social
#WebPerf #Performance #ImagePerf #Image #Web #WPO
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Squish
Compress and convert your images to AVIF, JPEG, JPEG XL, PNG, or WebP
A great tool (by @addyosmani.bsky.social ) to optimize images in your browser.
squish.addy.ie
#WebPerf #Image #ImagePerf
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Contemplating Codec Comparisons
cloudinary.com/blog/contemp...
#Image #WebPerf #Optimization #ImagePerf
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580K Sites load images from S3 instead of a CDN, 200K Sites load more than 1MB from S3 Source: HTTP Archive, October 2024
“580K Sites load images from
S3 instead of a CDN
200K Sites load more than
1MB from S3”
Great talk by Paul Calvano at @perfnow.bsky.social
#perfnow #WebPerf #ImagePerf
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