imager: isoblur – R documentation

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isoblur

Blur image isotropically.

Blur image isotropically.

isoblur(im, sigma, neumann = TRUE, gaussian = TRUE, na.rm = FALSE)

`im`	an image
`sigma`	Standard deviation of the blur (positive)
`neumann`	If true, use Neumann boundary conditions, Dirichlet otherwise (default true, Neumann)
`gaussian`	Use a Gaussian filter (actually van Vliet-Young). Default: 0th-order Deriche filter.
`na.rm`	if TRUE, ignore NA values. Default FALSE, in which case the whole image is NA if one of the values is NA (following the definition of the Gaussian filter)

isoblur(boats,3) %>% plot(main="Isotropic blur, sigma=3")
isoblur(boats,10) %>% plot(main="Isotropic blur, sigma=10")

Image Processing Library Based on 'CImg'

v0.42.10

LGPL-3

Authors

Simon Barthelme [aut], David Tschumperle [ctb], Jan Wijffels [ctb], Haz Edine Assemlal [ctb], Shota Ochi [cre]

Initial release