Alpha estimation - PowerPoint PPT Presentation

Images as graphs

Images as graphs. Fully-connected graph node for every pixel link between every pair of pixels, p , q similarity w ij for each link. i. w ij. c. j. Source: Seitz. Segmentation by Graph Cuts. w. Break Graph into Segments Delete links that cross between segments

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Photomontage

GrabCut Interactive Image (and Stereo) Segmentation Carsten Rother Vladimir Kolmogorov Andrew Blake Antonio Criminisi Geoffrey Cross [based on Siggraph 2004 and ECCV 2004]. GrabCut – Interactive Foreground Extraction 1. Photomontage. GrabCut – Interactive Foreground Extraction 2.

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581 views • 36 slides

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