Up the WebP chain at Google: Better speed, capability

Mar 24, 2014 by Nancy Owano weblog

(Phys.org) —Nicholas Doyle, optimization developer at Akamai Technologies, wrote last December about how image data dominates today's web site bytes, contributing to most of what we see. Loading images quickly is imperative, he said, and for the most part the strategies used to optimize images for web sites have not changed dramatically for quite a while. "Choice of formats between JPEG, GIF and more recently PNG and the choice of lossy compression settings is the usual approach taken by most people today." Doyle spent time implementing image optimizations as part of an Akamai solution and learned a great deal about the topic in the process. Flash-forward to March 2014 and one can say that Mozilla and Google have learned a lot too.

On Google's side, a post on Friday from Husain Bengali, product manager and WebP optimizer, detailed all that Google has achieved in WebP, a Google-developed image format employing lossy and lossless compression. Webmasters and can use the WebP image format to create smaller and richer that can help make the faster.

The post sent a message to developers outside of Google that the data transfer savings and user benefits of WebP are within easy reach. "Our team has been hard at work to make WebP even faster and more capable," he said. "A few months ago, we added support for animated WebP images to Chrome, making WebP the first unified format that can address the key use cases of JPEG, PNG and GIF files. The recent release of libwebp 0.4.0, currently in Chrome's Beta channel, is a culmination of numerous encoder and decoder optimizations that make encoding lossless images twice as fast, and decrease lossless decode time by 25%."

Outside the WebP team's work on improvements, he reported, other teams at Google were deploying WebP in their products. Google Play's online store replaced PNG images with lossless WebP, reducing image file sizes by nearly 35%. YouTube video thumbnails are starting to be served in WebP, he added, with initial results indicating up to a 10% reduction in page load time.

Mozilla, meanwhile, has been paying attention to compression, speeding up the Web and lifting JPEG up into the 21st century. A Mozilla blog recently remarked how the number of photos that the average Web site displays has grown over the years as has the size of those photos. HTML, JS, and CSS files are relatively small in comparison. The Mozilla blog noted too that photos can easily make up the bulk of the network traffic for a page load. Reducing the size of these files has been the goal for optimization. Earlier this month Mozilla introduced its solution, the 'mozjpeg' project, the goal of which is to provide a production-quality JPEG encoder that improves compression rates. Josh Aas, senior technology strategist at Mozilla Corporation, announced the project on March 5. "What we're releasing today, as version 1.0, is a fork of libjpeg-turbo with 'jpgcrush' functionality added."

Explore further: Microsoft buys Office collaborator app LiveLoop

More information: blog.chromium.org/2014/03/webp… ling-out-across.html

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5 / 5 (1) Mar 24, 2014
Nobody uses PNG correctly online - they use it to upload photographs and content that simply does not require lossless compression. Hardly anybody uses GIF files correctly either because they're horrible for animations and just end up using massive amounts of bandwidth for nothing.

So the downfall of WebP will be in Murphy's law: people will simply abuse it out of stupidity and ignorance, and upload photos and 5000 frame video clips in full color lossless mode, and then wonder why it takes 35 MB for a single file.

Every time you make a web standard, consider your mom, who just bought a 2400 DPI printer-scanner, who writes you a letter in Excel, prints it out, tapes your old baby picture on it, and puts it in the scanner so she can email it to you...

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