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A comment on The Clown Car Technique for Responsive Images.

Re:The Clown Car Technique for Responsive Images by DigitalSea on Sunday April 21, 2013 @07:55PM (#5587000)
I agree as a developer wholeheartedly we need a better way of adding in multiple versions of an image for the plethora of resolutions and pixel density's out there, but this technique feels a little hacky to me. I am a big advocate of SVG (I use SVG extensively for icons and logos especially) but cramming media queries and image tags within to save a few bytes at the added cost of complexity and browser quirks to debug doesn't feel like it's worth it.

The only solid fix for responsive imagery is a HTML5 tag that allows you to set breakpoints for different sizes. The proposed "picture" tag which is similar to that of the video tag does what we want, but we most likely won't see any action on this tag until 2014, possibly 2015 if this W3 bug ticket is any indication: https://www.w3.org/Bugs/Public/show_bug.cgi?id=18384

This jQuery script adds in the functionality for using the proposed tag now though, I can't speak for how well it works, but it looks promising: http://jquerypicture.com/

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Re:The Clown Car Technique for Responsive Images by est on Monday April 22, 2013 @03:07AM (#5588209)
JPEG/GIF/PNG all have interlaces, why not download the first scan for smaller image, and full scan for original images?
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Re:The Clown Car Technique for Responsive Images by dclowd9901 on Monday April 22, 2013 @10:28AM (#5589367)
Wow, this is a pretty novel approach; is this something that's been talked about or are you just one of those really clever people I keep hearing about?
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Re:The Clown Car Technique for Responsive Images by est on Tuesday April 23, 2013 @03:20AM (#5593747)
I just learned it from my other question on Stackoverflow not long ago

http://stackoverflow.com/questions/15674880/

It's a cool hack which you can serve low-res, monochrome jpeg in the first scan, and gradually to full-res, full-color jpeg.

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Re:The Clown Car Technique for Responsive Images by WiseWeasel on Monday April 22, 2013 @01:09PM (#5590424)
Half an interlaced image is still twice as big as an image at half resolution.
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Re:The Clown Car Technique for Responsive Images by qu4z-2 on Monday April 22, 2013 @11:16PM (#5593112)
Interlacing usually happens in two-dimensions in image formats, if I understand it correctly (ie it first sends one pixel out of each 2x2 block).

The only thing is I think that is one of the actual pixels, rather than an average. In an ideal world you could send the average color of each 2x2 block, then send the 2nd, 3rd, and 4th pixels and use that data to reconstruct the 1st pixel.

Or is that how it works already?

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