Comments on: Yet more seam carving http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/ the blog that is not dansdata.com Sun, 12 Feb 2012 01:54:05 +0000 http://wordpress.org/?v=1.5.1-alpha by: sockatume http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1463 Tue, 23 Oct 2007 02:38:13 +0100 http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1463 Manually assigning the weights to different parts of portraits can make for a rather entertaining <a href="http://img.photobucket.com/albums/v614/sockatume/original.jpg" rel="nofollow">caricature</a> <a href="http://img.photobucket.com/albums/v614/sockatume/distort.jpg" rel="nofollow">generator.</a> Manually assigning the weights to different parts of portraits can make for a rather entertaining caricature
generator.

]]> by: Daniel Rutter http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1461 Sat, 20 Oct 2007 02:21:30 +0100 http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1461 Making the retargeting consistent from frame to frame would require extra work, and it'd be impossible to do it without weird stuff happening when things in the frame moved relative to each other, or the camera itself moved. But yes, you actually could squish motion video this way. It'd be fascinating to see how it looked. Note that Pixar have done something like this for the 4:3 versions of at least some of their movies. They don't seam carve the widescreen version into full frame - instead, they "reshoot the scenes", moving everything around so it fits better on a screen with a different aspect ratio, then rendering again. Making the retargeting consistent from frame to frame would require extra work, and it'd be impossible to do it without weird stuff happening when things in the frame moved relative to each other, or the camera itself moved. But yes, you actually could squish motion video this way. It'd be fascinating to see how it looked.

Note that Pixar have done something like this for the 4:3 versions of at least some of their movies.

They don't seam carve the widescreen version into full frame - instead, they "reshoot the scenes", moving everything around so it fits better on a screen with a different aspect ratio, then rendering again.

]]> by: rcousine http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1460 Fri, 19 Oct 2007 14:08:39 +0100 http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1460 Whoa! I just realized that this concept is a practical implementation of the decade-old <a href="http://www.widescreenmuseum.com/flikfx/loatest1.htm" rel="nofollow">FlikFX</a> joke! Whoa! I just realized that this concept is a practical implementation of the decade-old FlikFX joke!

]]> by: Alan http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1459 Fri, 19 Oct 2007 11:02:59 +0100 http://dansdata.blogsome.com/2007/10/17/yet-more-seam-carving/#comment-1459 I must not be "most people". I have a whole bunch of 1600x1200 wallpapers, and I have been using seam carving (and other methods) to "teak" them out to widescreen 1920x1200. I've had some success, and some hideous failures. Failures typically happen when there's a human form over ~80% of the picture width- the ends of the picture get a "pinched" look (with masking) or the human form gets distorted (without masking). So far, Liquid Resize works best for me. I must not be "most people".
I have a whole bunch of 1600x1200 wallpapers, and I have been using seam carving (and other methods) to "teak" them out to widescreen 1920x1200. I've had some success, and some hideous failures. Failures typically happen when there's a human form over ~80% of the picture width- the ends of the picture get a "pinched" look (with masking) or the human form gets distorted (without masking).

So far, Liquid Resize works best for me.

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