Robust Image Contour Detection by Watershed Transformation
نویسندگان
چکیده
Two approaches of multistage gradient robusti cation for image contour detection are presented in this paper: two stages of Di erence of Estimates and Di erence of Estimate followed by an optimal ltering. Watershed transformation is then applied to these robusti ed gradient images to e ectively detect image contours which are guaranteed to be in closed form. Multistage gradient robusti cation provides the exibility of using di erent image processing techniques and produces good detection results for the images highly corrupted with noise.
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