CommonestFilter

CommonestFilter[image,r]
transforms image by replacing each pixel with the most common pixel value in its range-r neighborhood.

CommonestFilter[data,r]
applies commonest filtering to an array of data.

DetailsDetails

  • CommonestFilter[image,r] computes the commonest value in × blocks centered on each pixel.
  • For multichannel images, CommonestFilter computes the commonest of the set of pixel vectors.
  • At the edges of an image, CommonestFilter uses smaller neighborhoods.
  • CommonestFilter works with 3D as well as 2D images, and also with data arrays of any rank.
  • CommonestFilter[image,{rrow,rcol}] uses range in height, and in width.
  • CommonestFilter[image,{rslice,rrow,rcol}] uses range in height, in depth, and in width.

ExamplesExamplesopen allclose all

Basic Examples  (3)Basic Examples  (3)

Replacing each pixel with the most common color in its neighborhood creates a posterization effect:

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Apply commonest filtering to a 3D volume:

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Apply commonest filtering to a vector of numbers:

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