Friday, October 28, 2016
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Alphabet Reports Strong Sales As Mobile Search and Video Ads Drive Revenue Growth
New Radeon Pro 400 Series Graphics Power 15-inch MacBook Pro
LG ULtrafine 5K/4K Displays Offer Performance and Integration With MacBook And New MacBook Pro
Sony Brings PlayStation Vue To Android TVs
Apple unveils new MacBook Pro Featuring Touch Bar, Ultra-thin Design
Apple unveils new TV app for Apple TV, iPhone and iPad
Uber Lays Out Plans Future of On-Demand Urban Air Transportation
Facebook Offers Halloween-themed Face Filters for Live videos
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > General Computing > Lossles...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, November 22, 2011
Lossless and Transparency Encoding in WebP

Google's software engineers have introduced a new mode in WebP to compress images losslessly, and support for transparency - also known as alpha channel - in both the lossless and lossy modes.

In September 2010 Google announced the WebP image format with lossy compression. WebP was proposed as an alternative to JPEG, with 25-34% better compression compared to JPEG images at equivalent SSIM index. Last month the company announced WebP support for animation, ICC profile, XMP metadata and tiling.

With today's new modes, you can now use WebP to better compress all types of images on the web. Photographic images typically encoded as JPEG can be encoded in WebP lossy mode to achieve smaller file size. Icons and graphics can be encoded better in WebP lossless mode than in PNG. WebP lossy with alpha can be used to create transparent images that have minimal visual degradation, yet are much smaller in file size. Animations compressed as GIFs can use animation support in WebP.

According to Google, on average, you get a 45% reduction in size when starting with PNGs found on the web, and a 28% reduction in size compared to PNGs that are re-compressed with pngcrush and pngout. Smaller images on the page mean faster page loads.

Today, webmasters who need transparency must encode images losslessly in PNG, leading to a significant size bloat. WebP alpha encodes images with low bits-per-pixel and provides an effective way to reduce the size of such images. Lossless compression of the alpha channel adds just 22% bytes over lossy (quality 90) WebP encoding. Smaller alpha overhead means richer images on webpages.

You can find a more detailed compression study for these modes here.

Xbox 360 Dashboard update coming December 6th        All News        BiTMICRO's Next Generation of Solid State Drive Controller
Business Software Alliance Concerned About The Stop Online Piracy Act     General Computing News      ITC Says Apple Doesn't Violate S3's Patents

Get RSS feed Easy Print E-Mail this Message

Related News
Alphabet Reports Strong Sales As Mobile Search and Video Ads Drive Revenue Growth
Alphabet Cutting Jobs in Google Fiber, Pauses Expansion Plans
Google's Jamboard Reinverts The Whiteboard For Collaboration in the Cloud
Google Pixel XL Manufacturing Cost is in Line with Rival Smartphones
Google Raises 3rd Quarter Lobbying But Spending Falls Behind AT&T
Google To Reply to EU Charge on Shopping By November 7
Google And Facebook Build Undersea Cable From LA To Hong Kong
Google Introduces Pixel Smartphones, Affordable Daydream VR Headset, Google WiFi, Chromecast Ultra And Google Home
Google Set To unveil New Phones And Gadgets
Google Faces Fine Over Anti-competitive Android Practices: report
Google Apps for Work Become Smarter, Part Of New G Suite
Google Launches its Allo Messaging app

Most Popular News
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2016 - All rights reserved -
Privacy policy - Contact Us .