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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/3507

Title: Seam Carving for Media Retargeting
Authors: Suvija S
Keywords: image resizing techniques
change the aspect ratio of a video
Issue Date: 13-Jun-2011
Abstract: The diversity and versatility of display devices today imposes new demands on digital media. Designers must create different alternatives for web-content and design different layouts for different devices. Traditional image resizing techniques are oblivious to the content of the image when changing its height or width. In contrast, media (i.e., image and video) retargeting takes content into account. For example, one would like to change the aspect ratio of a video without making human figures look too fat or too skinny, or change the size of an image by automatically removing “unnecessary” portions while keeping the “important” features intact. Here is a simple operator; seam carving to support image and video retargeting. A seam is an optimal 1D path of pixels in an image, or a 2D manifold in a video cube, going from top to bottom, or left to right. Optimality is defined by minimizing an energy function that assigns costs to pixels. Here showing that computing a seam reduces to a dynamic programming problem for images and a graph min-cut search for video and also demonstrate that several image and video operations, such as aspect ratio correction, size change, and object removal, can be recast as a successive operation of the seam carving operator.
URI: http://hdl.handle.net/123456789/3507
Appears in Collections:MTech 2009-2011 Batch

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