A white-noise image is an image where all pixel values are drawn IID from a certain distribution. Here they are drawn from a Gaussian.
Usage
imnoise(x = 1, y = 1, z = 1, cc = 1, mean = 0, sd = 1, dim = NULL)
Arguments
x
width
y
height
z
depth
cc
spectrum
mean
mean pixel value (default 0)
sd
std. deviation of pixel values (default 1)
dim
dimension vector (optional, alternative to specifying x,y,z,cc)
Value
a cimg object
Author(s)
Simon Barthelme
Examples
imnoise(100,100,cc=3) %>% plot(main="White noise in RGB")
imnoise(100,100,cc=3) %>% isoblur(5) %>% plot(main="Filtered (non-white) noise")
imnoise(dim=dim(boats)) #Noise image of the same size as the boats image