Re:Image optimization decreased website's page weight by 62%
by snowwrestler on Monday July 16, 2018 @05:08PM
(#17545149)
Guetzli is for minimizing file size at the highest quality levels for JPEGs. Essentially, it's for nice looking photos.
It only goes down to quality 84 and it takes a looonngg time to optimize. As a point of comparison, the author of the linked blog post dropped his JPEG quality to 70 and was happy with it. A JPEG at 70 (or lower), if you're happy with the look, has a good shot to be even smaller than the smallest Guetzli output.
Generally speaking, the easiest gains in JPEG file size will probably come from just dropping the quality down and down in tests, and deciding what you can live with. But if you have to have the best quality, and have plenty of resources/time for encoding, then maybe Guetzli will be a good fit.
It only goes down to quality 84 and it takes a looonngg time to optimize. As a point of comparison, the author of the linked blog post dropped his JPEG quality to 70 and was happy with it. A JPEG at 70 (or lower), if you're happy with the look, has a good shot to be even smaller than the smallest Guetzli output.
Generally speaking, the easiest gains in JPEG file size will probably come from just dropping the quality down and down in tests, and deciding what you can live with. But if you have to have the best quality, and have plenty of resources/time for encoding, then maybe Guetzli will be a good fit.