as.matrix.im

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, ...)

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.

See Also

as.matrix.owin

Aliases

• as.matrix.im
• as.array.im

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)))
   
# }