EBImage: gblur – R documentation

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gblur

Low-pass Gaussian filter

Filters an image with a low-pass Gaussian filter.

gblur(x, sigma, radius = 2 * ceiling(3 * sigma) + 1, ...)

`x`	An `Image` object or an array.
`sigma`	A numeric denoting the standard deviation of the Gaussian filter used for blurring.
`radius`	The radius of the filter in pixels. Default is `2ceiling(3sigma)+1)`.
`...`	Arguments passed to `filter2`.

The Gaussian filter is created with the function makeBrush.

An Image object or an array, containing the filtered version of x.

Oleg Sklyar, osklyar@ebi.ac.uk, 2005-2007

x = readImage(system.file("images", "sample.png", package="EBImage"))
  display(x)

  y = gblur(x, sigma=8)
  display(y, title='gblur(x, sigma=8)')

Image processing and analysis toolbox for R

v4.32.0

LGPL

Authors

Andrzej Oleś, Gregoire Pau, Mike Smith, Oleg Sklyar, Wolfgang Huber, with contributions from Joseph Barry and Philip A. Marais

Initial release