September 2013
Beginner
756 pages
19h 35m
English
Content preview from Introduction to Digital Image Processing
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CLUSTERING SEGMENTATION 531
The first stage of the algorithm involves feature computation. In one set of experi-
ments, Coleman and Andrews used 12 mode measurements in square windows of size
1, 3, 7 and 15 pixels. The next step in the algorithm is the clustering stage, in which the
optimum number of clusters is determined along with the feature space center of each
cluster. In the segmenter, a given feature vector is assigned to its closest cluster center.
The cluster computation algorithm begins by establishing two initial trial cluster
centers. All feature vectors of an image are assigned to their closest cluster center.
Next, the number of cluster ...
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