rotateImage {OpenImageR}

Rotate an image using the 'nearest' or 'bilinear' method

Description

Rotate an image by angle using the 'nearest' or 'bilinear' method

Usage

rotateImage(image, angle, method = "nearest", mode = "same", threads = 1)

Arguments

image

matrix, data frame or 3-dimensional array where the third dimension is equal to 3

angle

specifies the number of degrees

method

a string specifying the interpolation method when rotating an image ( 'nearest', 'bilinear' )

mode

one of 'full', 'same' (same indicates that the ouput image will have the same dimensions with initial image)

threads

the number of cores to run in parallel

Details

This function rotates an image by a user-specified angle

Value

depending on the input, either a matrix or an array

Examples

path = system.file("tmp_images", "2.jpg", package = "OpenImageR")

image = readImage(path)

r = rotateImage(image, 75, threads = 1)