imager: as.cimg – R documentation

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as.cimg

Convert to cimg object

Description

Imager implements various converters that turn your data into cimg objects. If you convert from a vector (which only has a length, and no dimension), either specify dimensions explicitly or some guesswork will be involved. See examples for clarifications.

Usage

as.cimg(obj, ...)

## S3 method for class 'numeric'
as.cimg(obj, ...)

## S3 method for class 'logical'
as.cimg(obj, ...)

## S3 method for class 'double'
as.cimg(obj, ...)

## S3 method for class 'cimg'
as.cimg(obj, ...)

## S3 method for class 'vector'
as.cimg(obj, x = NA, y = NA, z = NA, cc = NA, dim = NULL, ...)

## S3 method for class 'matrix'
as.cimg(obj, ...)

Arguments

`obj`	an object
`...`	optional arguments
`x`	width
`y`	height
`z`	depth
`cc`	spectrum
`dim`	a vector of dimensions (optional, use instead of xyzcc)

Methods (by class)

numeric: convert numeric
logical: convert logical
double: convert double
cimg: return object
vector: convert vector
matrix: Convert to matrix

Author(s)

Simon Barthelme

Examples

as.cimg(1:100,x=10,y=10) #10x10, grayscale image
as.cimg(rep(1:100,3),x=10,y=10,cc=3) #10x10 RGB
as.cimg(1:100,dim=c(10,10,1,1))
as.cimg(1:100) #Guesses dimensions, warning is issued
as.cimg(rep(1:100,3)) #Guesses dimensions, warning is issued

imager

Image Processing Library Based on 'CImg'

v0.42.10

LGPL-3

Authors

Simon Barthelme [aut], David Tschumperle [ctb], Jan Wijffels [ctb], Haz Edine Assemlal [ctb], Shota Ochi [cre]

Initial release