gblur: Low-pass Gaussian filter

In EBImage: Image processing and analysis toolbox for R

Description

Filters an image with a low-pass Gaussian filter.

Usage

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

Arguments

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 2*ceiling(3*sigma)+1).
...	Arguments passed to filter2.

Details

The Gaussian filter is created with the function makeBrush.

Value

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

Author(s)

Oleg Sklyar, [e-mail], 2005-2007

See Also

filter2, makeBrush

Examples

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

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

Example output

EBImage documentation built on Nov. 8, 2020, 5:41 p.m.