Re: Studying Lossy Image Compression Efficiency, July 2014

2014-11-28 Thread songofapollo
On Tuesday, July 15, 2014 7:34:35 AM UTC-7, Josh Aas wrote: > This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image > Formats Study and the Mozilla Research blog post entitled "Mozilla Advances > JPEG Encoding with mozjpeg 2.0". It would help if you would use much more dis

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-09-16 Thread jnoring
On Tuesday, July 15, 2014 1:38:00 PM UTC-6, stone...@gmail.com wrote: > Would be nice if you guys just implemented JPEG2000. It's 2014. Based on what data? > Not only would you get a lot more than a 5% encoding boost, but you'd get > much higher quality images to boot. Based on what data? >

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-09-16 Thread jnoring
On Tuesday, July 15, 2014 8:34:35 AM UTC-6, Josh Aas wrote: > This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image > Formats Study and the Mozilla Research blog post entitled "Mozilla Advances > JPEG Encoding with mozjpeg 2.0". Could you post the command lines used for th

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-31 Thread janus
Den torsdag den 24. juli 2014 23.59.58 UTC+2 skrev Josh Aas: > > > I selected 10,000 random JPEGs that we were caching for customers and ran > > them through mozjpeg 2.0 via jpegtran. Some interesting facts: > > > With mozjpeg you probably want to re-encode with cjpeg rather than jpegtran. > W

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-24 Thread Josh Aas
On Friday, July 18, 2014 10:05:19 AM UTC-5, j...@cloudflare.com wrote: > I selected 10,000 random JPEGs that we were caching for customers and ran > them through mozjpeg 2.0 via jpegtran. Some interesting facts: With mozjpeg you probably want to re-encode with cjpeg rather than jpegtran. We add

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-24 Thread Josh Aas
> Are there any plans to integrate into other tools, specifically imagemagick? > > Or would you leave that up to others? For now we're going to stay focused on improving compression in mozjpeg's library. I think a larger improved toolchain for optimizing JPEGs would be great, but it's probably

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-24 Thread Josh Aas
On Tuesday, July 15, 2014 3:15:13 PM UTC-5, perez@gmail.com wrote: > #1 Would it be possible to have the same algorithm that is applied to webP to > be applied to JPEG? I'm not sure. WebP was created much later than JPEGs, so I'd think/hope they're already using some equivalent to trellis q

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-21 Thread Bryan Stillwell
One option that I haven't seen compared is the combination of JPEG w/ packJPG (http://packjpg.encode.ru/?page_id=17). packJPG can further compress JPEG images another 20%+ and still reproduce the original bit-for-bit. More details on how this is done can be found here: http://mattmahoney.net/d

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-21 Thread Gabriele Svelto
On 19/07/2014 22:40, Ralph Giles wrote: > Probably not for Firefox OS, if you mean mozjpeg. Not necessarily > because it uses hardware, but because mozjpeg is about spending more cpu > power to compress images. It's more something you'd use server-side or > in creating apps. The phone uses libjpeg-

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-19 Thread Ralph Giles
On 2014-07-19 1:14 PM, Caspy7 wrote: > Would this code be a candidate for use in Firefox OS or does most of that > happen in the hardware? Probably not for Firefox OS, if you mean mozjpeg. Not necessarily because it uses hardware, but because mozjpeg is about spending more cpu power to compress

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-19 Thread Caspy7
Would this code be a candidate for use in Firefox OS or does most of that happen in the hardware? ___ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-18 Thread jgc
On Tuesday, July 15, 2014 3:34:35 PM UTC+1, Josh Aas wrote: > This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image > Formats Study and the Mozilla Research blog post entitled "Mozilla Advances > JPEG Encoding with mozjpeg 2.0". Josh, I work for CloudFlare on many things

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-16 Thread renesd
Cool =Re decoding. I'm replying to this note: "1. We're fans of libjpeg-turbo - it powers JPEG decoding in Firefox because its focus is on being fast, and that isn't going to change any time soon. The mozjpeg project focuses solely on encoding, and we trade some CPU cycles for smaller fi

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread Masatoshi Kimura
On 7/15/14 12:38 PM, stonecyp...@gmail.com wrote: > Similarly there's a reason that people are still hacking video into > JPEGs and using animated GIFs. People are using animated GIFs, but animated GIFs people are using may not be animated GIFs [1]. (2014/07/16 5:43), Chris Peterson wrote: > Do C

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread Chris Peterson
On 7/15/14 12:38 PM, stonecyp...@gmail.com wrote: On Tuesday, July 15, 2014 7:34:35 AM UTC-7, Josh Aas wrote: This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image Formats Study and the Mozilla Research blog post entitled "Mozilla Advances JPEG Encoding with mozjpeg 2.0"

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread perez . m . marc
On Tuesday, July 15, 2014 10:34:35 AM UTC-4, Josh Aas wrote: > This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image > Formats Study and the Mozilla Research blog post entitled "Mozilla Advances > JPEG Encoding with mozjpeg 2.0". #1 Would it be possible to have the same al

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread john
On Tuesday, July 15, 2014 7:34:35 AM UTC-7, Josh Aas wrote: > This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image > Formats Study and the Mozilla Research blog post entitled "Mozilla Advances > JPEG Encoding with mozjpeg 2.0". Would be nice if you guys just implemented J

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread stonecypher
On Tuesday, July 15, 2014 7:34:35 AM UTC-7, Josh Aas wrote: > This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image > Formats Study and the Mozilla Research blog post entitled "Mozilla Advances > JPEG Encoding with mozjpeg 2.0". Would be nice if you guys just implemented J

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread lange . fabian
Hello Josh, thank you and all involved for your efforts to make the web faster. Are there any plans to integrate into other tools, specifically imagemagick? Or would you leave that up to others? With all the options available for image processing one can end up with building quite a complex chai

Re: Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread Josh Aas
Study is here: http://people.mozilla.org/~josh/lossy_compressed_image_study_july_2014/ Blog post is here: https://blog.mozilla.org/research/2014/07/15/mozilla-advances-jpeg-encoding-with-mozjpeg-2-0/ ___ dev-platform mailing list dev-platform@lists.moz

Studying Lossy Image Compression Efficiency, July 2014

2014-07-15 Thread Josh Aas
This is the discussion thread for Mozilla's July 2014 Lossy Compressed Image Formats Study and the Mozilla Research blog post entitled "Mozilla Advances JPEG Encoding with mozjpeg 2.0". ___ dev-platform mailing list dev-platform@lists.mozilla.org https: