Linked by Thom Holwerda on Sun 23rd May 2010 09:41 UTC
Now that Google has opened up VP8, the big question is obviously how it'll hold up to H264. Of course, VP8 already wins by default because it's open source and royalty free, but that doesn't mean we should neglect the quality issue. Jan Ozer from StreamingMedia.com has put up an article comparing the two codecs, and concludes that the differences are negligible - in fact, only in some high-motion videos did H264 win out. As always, this is just one comparison and most certainly anything but conclusive. Update: Another comparison. I can't spot the difference, but then again, I'm no expert.
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RE[4]: H.264 vs VP8 comparison
by Neolander on Sun 23rd May 2010 17:40
in reply to "RE[3]: H.264 vs VP8 comparison"
Member since:2010-03-08
I think you should compare gif to png. That's more inline with the usage pattern.
Yes, but as far as I know PNG did not exist at that time. GIF was a superior format on the 256-color screens in term of compression vs image quality, but JPEG was safer.
(True, PNG beats them all, I use this format for just about everything which doesn't require layers or animation ^^ But at the time, there was a compromise about compression quality vs licensing quality)
Edited 2010-05-23 17:45 UTC
RE[5]: H.264 vs VP8 comparison
by Timmmm on Sun 23rd May 2010 18:45
in reply to "RE[4]: H.264 vs VP8 comparison"
Member since:2006-07-25
RE[5]: H.264 vs VP8 comparison
by Lennie on Sun 23rd May 2010 20:16
in reply to "RE[4]: H.264 vs VP8 comparison"
Member since:2007-09-22
RE[4]: H.264 vs VP8 comparison
by sorpigal on Mon 24th May 2010 11:13
in reply to "RE[3]: H.264 vs VP8 comparison"
Member since:2005-11-02
PNG was created when patent fears about GIF began to seem reasonable. It is not reasonable to compare PNG and GIF therefore because for many years there was no such option; the choices were JPEG and GIF, or to take a chance that the client would support some other format and have the bandwidth to download it.
PNG is superior to GIF in almost every way. It does not animate and under certain very specific scenarios has inferior compression. Other than those it is superior.
PNG is superior to JPEG in image quality, being lossless, but for photographic imagery compresses much less well.
Today GIF is used almost exclusively for its animations, since no other means of animation is natively supported by all browsers.
RE[5]: H.264 vs VP8 comparison
by lemur2 on Mon 24th May 2010 11:34
in reply to "RE[4]: H.264 vs VP8 comparison"
Member since:2007-02-17
PNG was created when patent fears about GIF began to seem reasonable. It is not reasonable to compare PNG and GIF therefore because for many years there was no such option; the choices were JPEG and GIF, or to take a chance that the client would support some other format and have the bandwidth to download it.
PNG is superior to GIF in almost every way. It does not animate and under certain very specific scenarios has inferior compression. Other than those it is superior.
PNG is superior to JPEG in image quality, being lossless, but for photographic imagery compresses much less well.
Today GIF is used almost exclusively for its animations, since no other means of animation is natively supported by all browsers.
PNG is superior to GIF in almost every way. It does not animate and under certain very specific scenarios has inferior compression. Other than those it is superior.
PNG is superior to JPEG in image quality, being lossless, but for photographic imagery compresses much less well.
Today GIF is used almost exclusively for its animations, since no other means of animation is natively supported by all browsers.
http://people.mozilla.com/~dolske/apng/demo.html
http://en.wikipedia.org/wiki/APNG
http://animatedpng.com/
Enjoy. Especially Chompy. (You will need Firefox 3.0 or later, or Opera).
News
Linked by Thom Holwerda on 06/18/13 22:33 UTC
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Linked by Anonymous on 06/18/13 22:26 UTC
The open source Contiki operating system and its commercial Thingsquare distribution are making strides towards the connected home. According to a Computerworld article, a new LED light bulb manufacturer is putting small computers into their light bulbs. Each computer runs the Contiki OS, which gives each bulb an IP address and allows them to be controlled with a smartphone application. To connect the bulbs to the application, the bulbs use both Wi-Fi and the much lower power IEEE 802.15.4 mesh technology.
Linked by Thom Holwerda on 06/18/13 22:25 UTC
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Linked by Thom Holwerda on 06/18/13 17:45 UTC
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Linked by Thom Holwerda on 06/18/13 17:32 UTC, submitted by poundsmack
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Linked by Thom Holwerda on 06/17/13 17:52 UTC
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Linked by Thom Holwerda on 06/14/13 21:03 UTC
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Linked by Thom Holwerda on 06/14/13 20:46 UTC
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Linked by Thom Holwerda on 06/14/13 17:32 UTC
From Bloomberg: "Microsoft, the world's largest software company, provides intelligence agencies with information about bugs in its popular software before it publicly releases a fix, according to two people familiar with the process. That information can be used to protect government computers and to access the computers of terrorists or military foes." The lid has officially been blown off.More News »
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Member since:
2007-09-22
I think you should compare gif to png. That's more inline with the usage pattern.