Users prefer Guetzli JPEG over same-sized libjpeg · HackerPapers discussions

Users prefer Guetzli JPEG over same-sized libjpeg — mentioned by vladdanilov

Mon, 07 May 2018 08:27:08 GMT

There are glaring optimization issues. Over 6MB of those 10MB is just one bloated photo [1]. It can be compressed down to 1-2MB. Moreover, if it was a proper responsive image, it would not be larger than 100-200 KB for most readers because a good JPEG compressor can pull 2 bits per pixel [2]. Ironically, image optimization apps don't get that much coverage. [1] https://techcrunch.com/wp-content/uploads/2018/05/vikbajaj20... [2] https://arxiv.org/pdf/1703.04416.pdf

Paper and discussion history. A mention is not an endorsement.

Users prefer Guetzli JPEG over same-sized libjpeg — mentioned by makapuf

Tue, 23 May 2017 10:20:20 GMT

I find this article a bit poor. It basically gives a few data points about the resulting image size for a few quality settings from an unknown source image already compressed in jpeg with unknown quality setting. No example of perceptual quality degradation or screenshots (which would have been useful for a perceptual codec) besides him finding no and another person find very little difference. No comparison to a standard jpeg compressor for the same image / quality. I'm curious : how does guetzli that compare to libjpeg ? libjpeg-turbo ? whatever photoshop is using ?) esp in size for the…

Paper and discussion history. A mention is not an endorsement.

Users prefer Guetzli JPEG over same-sized libjpeg — mentioned by janwas

Sun, 19 Mar 2017 17:33:35 GMT

We did an experiment with comparisons of Guetzli and (slightly larger) libjpeg output: https://arxiv.org/abs/1703.04416 Turns out that 75% of the 614 ratings are in favor of the Guetzli version.

Paper and discussion history. A mention is not an endorsement.

Users prefer Guetzli JPEG over same-sized libjpeg — mentioned by dmitrygr

Thu, 16 Mar 2017 18:12:46 GMT

Cool, but neither the article nor the paper (https://arxiv.org/pdf/1703.04416.pdf) mention just how much slower it is.

Paper and discussion history. A mention is not an endorsement.