EBImage (version 4.14.2)

gblur: Low-pass Gaussian filter

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.

Value

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

Details

The Gaussian filter is created with the function makeBrush.

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)')