Plz add Google's Guetzli encoder in addition to libjpeg

Questions and postings pertaining to the development of ImageMagick, feature enhancements, and ImageMagick internals. ImageMagick source code and algorithms are discussed here. Usage questions which are too arcane for the normal user list should also be posted here.
Post Reply
User avatar
Posts: 75
Joined: 2014-06-12T03:17:45-07:00
Authentication code: 6789
Location: Berlin

Plz add Google's Guetzli encoder in addition to libjpeg

Post by Marsu42 »

I've become a supporter and user of (esp. pre-processed lossless) webp, but with more computing power there are obviously still improvements even in ancient formats... behold, Google strikes again: ... -jpeg.html
Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg.
Guetzli: Perceptually Guided JPEG Encoder:
75% of users prefer Guetzli JPEG over same-sized libjpeg:

Get the code here:
Download binaries hiere:

At some point in time, it would be nice to have Guetzli inside IM like libjpeg ... but as development is progressing quickly and atm apart from the quality there are zero config options a simple link to the cli exe (like with jxrenc an so on) would be nice.

Drawbacks: Guetzli generates only sequential (nonprogressive) JPEGs, and only for high quality >= 84 libjpeg equivalent setting.
Post Reply