denoise {EBImage} | R Documentation |
Blurs an image with ImageMagick functions.
blur(x, r=0, s=0.5) gblur(x, r=0, s=0.5)
x |
An |
r |
A numeric value for the radius of the pixel neighbourhood. The default value 0 enables automatic radius selection. |
s |
The standard deviation of the Gaussian filter used for
blurring. For reasonable results, |
blur
uses an unspecified separable kernel. gblur
uses
a Gaussian kernel. The algorithms used by these ImageMagick functions
are not well defined and hence, the usage of filter2
is preferable
to blur
or gblur
.
An Image
object or an array, containing the blurred version
of x
.
Oleg Sklyar, osklyar@ebi.ac.uk, 2005-2007
ImageMagick: http://www.imagemagick.org.
filter2
x = readImage(system.file("images", "lena.gif", package="EBImage")) if (interactive()) display(x) y = blur(x, r=3, s=2) if (interactive()) display(y, title='blur(x, r=3, s=2)') y = gblur(x, r=3, s=2) if (interactive()) display(y, title='gblur(x, r=3, s=2)')