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Applies the Canny edge detection algorithm to an image. The output is an image whose bands have the same names as the input bands, and in which non-zero values indicate edges, and the magnitude of the value is the gradient magnitude.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[[["\u003cp\u003eIdentifies edges within an image by calculating gradient magnitude and applying a threshold.\u003c/p\u003e\n"],["\u003cp\u003eReturns an image where non-zero values represent edges, and the magnitude of the value corresponds to the gradient magnitude.\u003c/p\u003e\n"],["\u003cp\u003eOffers customization options through a threshold for gradient magnitude and a sigma value for pre-filtering.\u003c/p\u003e\n"]]],[],null,["# ee.Algorithms.CannyEdgeDetector\n\nApplies the Canny edge detection algorithm to an image. The output is an image whose bands have the same names as the input bands, and in which non-zero values indicate edges, and the magnitude of the value is the gradient magnitude.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------------------------------------------------|---------|\n| `ee.Algorithms.CannyEdgeDetector(image, threshold, `*sigma*`)` | Image |\n\n| Argument | Type | Details |\n|-------------|-------------------|---------------------------------------------------------------------------------------------------------------------------|\n| `image` | Image | The image on which to apply edge detection. |\n| `threshold` | Float | Threshold value. The pixel is only considered for edge detection if the gradient magnitude is higher than this threshold. |\n| `sigma` | Float, default: 1 | Sigma value for a gaussian filter applied before edge detection. 0 means apply no filtering. |"]]
