imager (version 0.20)

resize_doubleXY: Resize image uniformly

Description

Resize image by a single scale factor. For non-uniform scaling and a wider range of options, see resize.

Usage

resize_doubleXY(im)
resize_halfXY(im)
resize_tripleXY(im)
imresize(im, scale = 1)

Arguments

im

an image

scale

a scale factor

Value

an image

Functions

• resize_doubleXY: Double size
• resize_halfXY: Half size
• resize_tripleXY: Triple size
• imresize: resize by scale factor

References

For double-scale, half-scale, triple-scale, etc. uses an anisotropic scaling algorithm described in: http://scale2x.sourceforge.net/algorithm.html.

See Also

resize

Examples

im <- load.example("parrots")
imresize(im,1/4) #Quarter size
liply(2:4,function(ind) imresize(im,1/ind),"x") %>%  plot