Linked by Thom Holwerda on Thu 30th Sep 2010 23:04 UTC
Google A few months ago, Google open sourced the VP8 video codec as part of the WebM video project, to create a truly Free/free unencumbered video format for the web as an answer to the non-Free/free patent-encumbered H264 format. Today, Google launched a new image format for the web, WebP, which aims to significantly reduce the file size of photos and images on the web.
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troy.unrau
Member since:
2007-02-23

I do, but I use it in lossless compression mode. In planetary science, it's a particularly useful format as it allows you to view segments very large images at different zoom levels simply by evaluating different chunks of the image file. This is a huge advantage of using the DWT, especially when the image sizes grow to be overly large.

eg: HiRISE images ( http://hirise.lpl.arizona.edu/ ) come in at about 2.5 Gigapixels; jpeg2000 is perfect for viewing pieces of the image at different zoom levels.

That said, implementing jpeg2000 for web photos would be silly, as the web is currently designed. Pretty much all images on the web are viewed at 100% zoom; should that change, jpeg2000 would be useful. As it is, other algorithms are faster than the DWT used.

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