New technology from Google could save lots of bandwidth.

Google has already experimented with machine learning to make images on Google+ up to 75 percent less, and now stands Jpeg format for the tour.

Preserves compatibility
The new compression technique of JPEG images, called Guetzli (Swiss German for biscuits), will provide “faster web experiences by producing less Jpeg files while still preserving compatibility with existing browsers, imaging applications and JPEG standard.”

Common Jpeg images can be up to 35 percent less with Guetzli and there are also fewer “artefacts” in image files – using another “psycho visual modeling” than traditional JPEG.

Takes considerably longer
The only problem with the new technique is that it takes “considerably longer to create a compressed image than other methods,” writes Google Research blog.

Not only that, but the smaller the images should not sacrifice quality, and Google has done his own research on whether the images are better or not.

Prefer Guetzli
There they found that ordinary people preferring Guetzli-compressed images of common compressed images, although these were of the same size or had slightly larger image files.

The hope now is that webmasters and designers use Guetzli coding to picture their content, which will reduce download times and bandwidth costs for mobile users.

Google Research