Guetzli

Guetzli
Original author(s)Google Research
Initial releaseMarch 15, 2017; 7 years ago (2017-03-15)
Stable release
1.0.1 / March 21, 2017; 7 years ago (2017-03-21)
Repositorygithub.com/google/guetzli
Written inC++
Standard(s)JPEG
LicenseApache License 2.0

Guetzli is a freely licensed JPEG encoder that Jyrki Alakuijala, Robert Obryk, and Zoltán Szabadka have developed in Google's Zürich research branch. The encoder seeks to produce significantly smaller files than prior encoders at equivalent quality, albeit at very low speed. It is named after the Swiss German diminutive expression for biscuits,[1] in line with the names of other compression technology from Google.[2][3]

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