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Automatic gradient threshold determination for edge detection
57
Zitationen
2
Autoren
1996
Jahr
Abstract
We describe a method to automatically find gradient thresholds to separate edge from nonedge pixels. A statistical model that is the weighted sum of two gamma densities corresponding to edge and nonedge pixels is used to identify a threshold. Results closely match human perceptual thresholds even under low signal-to-noise ratio (SNR) levels.
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