as.matrix.im
From spatstat v1.64-1
by Adrian Baddeley
Convert Pixel Image to Matrix or Array
Converts a pixel image to a matrix or an array.
Usage
# S3 method for im
as.matrix(x, ...)
# S3 method for im
as.array(x, ...)
Arguments
- x
A pixel image (object of class
"im"
).- …
See below.
Details
The function as.matrix.im
converts the pixel image x
into a matrix containing the pixel values.
It is handy when you want to extract a summary of the pixel values.
See the Examples.
The function as.array.im
converts the pixel image to an array.
By default this is a three-dimensional array of dimension \(n\) by
\(m\) by \(1\).
If the extra arguments …
are given, they will be passed
to array
, and they may change the dimensions of the
array.
Value
A matrix or array.
See Also
Examples
# NOT RUN {
# artificial image
Z <- setcov(square(1))
M <- as.matrix(Z)
median(M)
# }
# NOT RUN {
# plot the cumulative distribution function of pixel values
plot(ecdf(as.matrix(Z)))
# }
Community examples
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