When I first saw Microsoft's Sea Dragon technology, I was blown away. A demo of the application of that technology can be seen here. I am similarly amazed at how the videos below demonstrate a whole new world of resizing, whereby "priority" is given to certain items, either automatically, or via optional user interaction. Called "seam carving", or "content-aware image resizing", these techniques are sure to make it into Photoshop CS4, and are the new phrases to describe the techniques.
One concern I have, is how the resizing can alter perspective, and there are a few examples, where perspective changes are altered in the video.
Alternatively, the ability to also delete content by marking it as a first to delete, is very interesting indeed. This gives rise to the whole Getty $49 issue as it relates to the resizeability of those smaller files.
Below is another example of content aware resizing (no audio on this one), using several images. For the image of the White House, you can see how the algorythms are "thinking", in keeping the White House itself the same, and diminishing the green lawn in the foreground, for example.
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