icknay - Slashdot User

Submission + - JPEG XL - Free and open next gen image format

Submitted by icknay on Friday August 16, 2019 @01:35PM

icknay writes: JPEG XL looks very promising as a next gen replacement for JPEG, PNG and GIF.. JPEG was incredibly successful by solving a real problem with a free and open format. Other formats have tried to replace it, notably HEIF which will never by universal due to its patent licensing. JPEG XL combines all the modern features, replacing JPEG PNG and GIF and has free and open licensing. The linked slides from Jon Sneyers review the many other attempts at replacing JPEG plus the obligatory XKCD standards joke.

Submission + - Concrete Comparisons of Theora vs. Mpeg-4 (stanford.edu)

Submitted by

icknay

on Monday June 22, 2009 @01:29PM

icknay writes: "With the upcoming Firefox 3.5 and HTML5 video, there's natural interest in Theora vs. Mpeg-4, but without much evidence either way. Here's clips encoded at various rates to provide concrete comparison between Theora and Mpeg-4. Theora performs decently, but requires more bandwidth than Mpeg-4 (although this is an 1.1alpha release of Theora and Theora has a much better license than Mpeg-4). The quality comparisons are very subjective, but you can try the clips yourself and see how it breaks down. There was an earlier discussion about this but which lacked much concrete evidence. (disclosure: it's my page)"

Submission + - olpc - sic transit gloria? (radian.org)

Submitted by icknay on Tuesday May 13, 2008 @07:14PM

icknay writes: Here's an interesting rant on the olpc from someone who worked there, including ... "The core mistake of the present Sugar approach is that it couples phenomenally powerful ideas about learning — that it should be shared, collaborative, peer to peer, and open — with the notion that these ideas must come presented in an entirely new graphical paradigm. We reject this coupling as untenable. Choosing to reinvent the desktop UI paradigm means we are spending our extremely overconstrained resources fighting graphical interfaces, not developing better tools for learning."

I have an OLPC, and the OS itself seems quite unfinished. I buy the argument that it would be better to focus on Sugar as educational software, and let it run on Linux, Windows, whatever.

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