Monday, May 01, 2017
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Hacker Gets Access To Unreleased "Orange Is The New Black" Netflix Episodes
Turkey Blocks Access To Wikipedia
Qualcomm Slashes Profit Expectations As Apple Refuses To Pay Royalty Payments
Kodi Clarifies DRM Stance, Shuts Down Rumors
ASML Countersues Nikon Over Alleged Patent Infringement
Image Sensors, Batteries And Playstation Boosts Sony's Profit
Cost Cuts Start Paying Off For Sharp
New Nintendo 2DS XL Gaming Handheld System Coming On July 28
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 > Google ...
Last 7 Days News : SU MO TU WE TH FR SA All News

Friday, March 17, 2017
Google Guetzli JPEG encoder Creates 35% Smaller Files


Google has announced the open source release of Guetzli, a new JPEG encoder able to reduce a JPEG's file size by up to 35%, without any significant loss of quality.



Guetzl is a JPEG encoder for digital images and web graphics that produces smaller JPEG files while still maintaining compatibility with existing browsers, image processing applications and the JPEG standard. From the practical viewpoint this is very similar to Google's Zopfli algorithm, which produces smaller PNG and gzip files without needing to introduce a new format, and different than the techniques used in RNN-based image compression, RAISR, and WebP, which all need client and ecosystem changes for compression gains at internet scale. The visual quality of JPEG images is directly correlated to its multi-stage compression process: color space transform, discrete cosine transform, and quantization. Guetzli specifically targets the quantization stage in which the more visual quality loss is introduced, the smaller the resulting file. Guetzli strikes a balance between minimal loss and file size by employing a search algorithm that tries to overcome the difference between the psychovisual modeling of JPEG's format, and Guetzli's psychovisual model, which approximates color perception and visual masking in a more thorough and detailed way than what is achievable by simpler color transforms and the discrete cosine transform. However, while Guetzli creates smaller image file sizes, the tradeoff is that these search algorithms take significantly longer to create compressed images than currently available methods.

However, Guetzli is slow in compressing images. "Guetzli is rather slow to encode," the researchers said, suggesting it's most likely useful on image-heavy websites. "Although Guetzli may be too slow for many practical uses, we hope that it can show direction for future image format design," the researchers said.

Mozilla, maker of the Firefox web browser, also began a project in 2014 called Mozjpeg designed to improve on standard compression engines. Google's tests showed that Guetzli outdoes Mozilla's tool by 29 to 45 percent.



Previous
Next
Wanda and IBM To Bring IBM Cloud to China        All News        Microsoft's Latest Updates On Windows 7 and Windows 8.1 Systems Won't Install If Your Hardware is New
Wanda and IBM To Bring IBM Cloud to China     General Computing News      Microsoft's Latest Updates On Windows 7 and Windows 8.1 Systems Won't Install If Your Hardware is New

Get RSS feed Easy Print E-Mail this Message

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2017 - All rights reserved -
Privacy policy - Contact Us .