| 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 Image object or an array. |
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, r must be larger
than s. |
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)')