Lecture#6: segmentation Anat Levin Introduction to Computer Vision Class Fall 2009 Department of Computer Science and App math, Weizmann Institute of Science.

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Lecture#6: segmentation Anat Levin Introduction to Computer Vision Class Fall 2009 Department of Computer Science and App math, Weizmann Institute of Science.

Graph cuts segmentation

Spectral segmentation Automatic, no user input group pixels with similar low level cues (color/texture) No clever high level decisions such as objects identities, just grouping coherent regions

Normalized Cuts

Original Image and rows from the weight matrix

Eigen vectors

Segmentation

How many groups?