R: Convert Pixel Image to Matrix

as.matrix.owin {spatstat.geom} | R Documentation

## Convert Pixel Image to Matrix

### Description

Converts a pixel image to a matrix.

### Usage

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

### Arguments

`x` | A window (object of class `"owin"`).
`...` | Arguments passed to `as.mask` to control the pixel resolution.

### 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.

### Value

A logical matrix.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

and Rolf Turner r.turner@auckland.ac.nz

### See Also

`as.matrix.im`, `as.im`

### Examples

      m <- as.matrix(letterR)

[Package spatstat.geom version 2.3-2 Index]