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The Effect of Median Filtering on Edge Estimation and Detection

The Effect of Median Filtering on Edge Estimation and Detection,10.1109/TPAMI.1987.4767894,IEEE Transactions on Pattern Analysis and Machine Intellige

The Effect of Median Filtering on Edge Estimation and Detection   (Citations: 73)
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In this paper we consider the effect of median prefiltering on the subsequent estimation and detection of edges in digital images. Where possible, a quantitative statistical comparison is made for a number of filters defined with two-dimensional geometries; in some cases one-dimensional analyses are required to illustrate certain points. Noise images prefiltered by median filters defined with a variety of windowing geometries are used to support the analysis, and it is found that median prefiltering improves the performance of both thresholding and zero-crossing based edge detectors.
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