Google's JPEG encoder reduces image size by 35%, could help you save mobile data in the future
Called Guetzli, which is apparently Swiss German for cookie, the new JPEG encoder does its magic during the so-called quantization stage of image compression, which is when the encoder tries to strike a balance between removing detail to keep size down, without obliterating the source image.
Check out these examples to get a better idea of how Guetzli works:
A crop of an image of a phone line hanging against a blue sky. From left to right – original image, libjpeg compression in the middle, and Guetzli on the right
As you can see, the new encoder fares better than libjpeg, although, as we said above, it needs more time to produce results.
Here is another example:
A crop of a cat’s eye. From left to right – original, libjpeg, Guetzli
Guetzli is open source and is good news for everyone, as it could help substantially reduce the size of image content online, as well as in apps. This would mean faster loading times and less data used.
source: Google via TheNextWeb
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