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S1.3 Classification of Image Edges

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Abstract: Edges are relevant information for image representation. In this paper, we propose an algorithm for the classification of step, concave slope, convex slope, roof, valley and staircase edges. The importance of the classification is that it simplifies several problems in artificial vision and image processing, by associating specific processing rules to each type of edge. Our classification is based on the behavioral study of these edges with respect to differentiation operators and scale. The first directional derivative, the gradient and the Laplacian are used as operators. We test our algorithm on synthetic and real grey-level images. In most cases, the classification obtained corresponds to the intensity profile of the image.


Marc Parizeau
5/18/1999