hist.im {spatstat}R Documentation

Histogram of Pixel Values in an Image

Description

Computes and displays a histogram of the pixel values in a pixel image. The hist method for class "im".

Usage

  hist.im(x, ...)

Arguments

x A pixel image (object of class "im").
... Arguments passed to hist.default.

Details

This function computes and (by default) displays a histogram of the pixel values in the image x.

An object of class "im" describes a pixel image. See im.object) for details of this class.

The function hist.im is a method for the generic function hist for the class "im".

Any arguments in ... are passed to hist.default. For example, such arguments control the axes, and may be used to suppress the plotting.

Value

A single number.

Author(s)

Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner rolf@math.unb.ca http://www.math.unb.ca/~rolf

See Also

hist, hist.default, im.object, summary.im.

Examples

  X <- as.im(function(x,y) {x^2}, unit.square())
  hist(X)

[Package spatstat version 1.8-8 Index]