Dilation

Dilation[image,ker]
gives the morphological dilation of image with respect to the structuring element ker.

Dilation[image,r]
gives the dilation with respect to a range-r square.

Dilation[data,]
applies dilation to an array of data.

Details and OptionsDetails and Options

  • Dilation works with binary, grayscale, or multichannel images, operating separately on each channel.
  • Dilation works with 3D as well as 2D images, and also with data arrays of any rank.
  • The structuring element ker is a matrix containing s and s.
  • Dilation automatically adds zeros to structuring elements so that they have odd dimensions.
  • Dilation[image,r] is equivalent to Dilation[image,BoxMatrix[r]].
  • If multiple image channels are present, Dilation operates on each of them separately.
  • Dilation takes a Padding option that specifies the values to assume for pixels outside the image.
  • The default setting is Padding->0, corresponding to pixel value for all channels.

ExamplesExamplesopen allclose all

Basic Examples  (6)Basic Examples  (6)

Dilation removes smaller, dark features:

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Dilation of a binary image:

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Grayscale dilation:

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Dilate horizontally:

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Dilate vertically:

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Dilate with a disk-shaped structuring element:

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Introduced in 2008
(7.0)
| Updated in 2012
(9.0)