spatstat.geom (version 3.2-8)

as.matrix.owin: Convert Pixel Image to Matrix

Description

Converts a pixel image to a matrix.

Usage

# S3 method for owin
as.matrix(x, ...)

Value

A logical matrix.

Arguments

x

A window (object of class "owin").

...

Arguments passed to as.mask to control the pixel resolution.

Author

Adrian Baddeley

and Rolf Turner

Details

The function as.matrix.owin converts a window to a logical matrux.

It first converts the window x into a binary pixel mask using as.mask. It then extracts the pixel entries as a logical matrix.

The resulting matrix has entries that are TRUE if the corresponding pixel is inside the window, and FALSE if it is outside.

The function as.matrix is generic. The function as.matrix.owin is the method for windows (objects of class "owin").

Use as.im to convert a window to a pixel image.

See Also

as.matrix.im, as.im

Examples

  m <- as.matrix(letterR)