ee.Image.fastDistanceTransform
Returns the distance, as determined by the specified distance metric, to the nearest non-zero valued pixel in the input. The output contains values for all pixels within the given neighborhood size, regardless of the input's mask. Note: the default distance metric returns squared distance.
| Usage | Returns | Image.fastDistanceTransform(neighborhood, units, metric) | Image |
| Argument | Type | Details | this: image | Image | The input image. |
neighborhood | Integer, default: 256 | Neighborhood size in pixels. |
units | String, default: "pixels" | The units of the neighborhood, currently only 'pixels' are supported. |
metric | String, default: "squared_euclidean" | Distance metric to use: options are `squared_euclidean`, `manhattan` or `chebyshev`. |
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Last updated 2024-07-13 UTC.
[null,null,["Last updated 2024-07-13 UTC."],[[["Calculates the distance to the closest non-zero pixel for every pixel in an image, considering a specified neighborhood and distance metric."],["Provides flexibility in choosing neighborhood size, measurement units (currently only pixels), and distance metric (squared Euclidean, Manhattan, or Chebyshev)."],["Outputs an image where each pixel value represents the calculated distance to its nearest non-zero pixel, including areas outside the input mask."],["Defaults to a neighborhood size of 256 pixels, uses pixels as the unit of measurement, and employs the squared Euclidean distance metric."]]],[]]