Over time, the size of Internet pages gradually increase, mainly due to the greater number of images on the site. In most cases, to encode images using the format jpeg, which was developed 22 years ago. Since that time, the format has become generally accepted and has not changed much.
However, Mozilla analyzed the data compression method and found it imperfect. In this regard, she announced a project to develop a new graphics format, mozjpeg, designed to reduce the final image size.
The new format is a kind of libjpeg-turbo with an additionally integrated perl jpgcrush functionality. The final solution will be able to improve the efficiency of data compression in the graphic elements of web pages.
During the first test, 1500 random files from Wikimedia were processed, and the test results showed that the script reduces the file size by an average of 10%. This was reported by Mozilla in its official blog.
It is also worth noting that the new method can also be used to encode png-files, but the gain is only 2-6%.
The article is based on materials .
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