translation: image translation

In OpenImageR: An Image Processing Toolkit

image translation

Description

shift the position of an image by adding/subtracting a value to/from the X or Y coordinates

Usage

translation(image, shift_rows = 0, shift_cols = 0, padded_value = 0)

Arguments

image	a matrix, data frame or 3-dimensional array where the third dimension is equal to 3
shift_rows	a positive or negative integer specifying the direction that the rows should be shifted
shift_cols	a positive or negative integer specifying the direction that the columns should be shifted
padded_value	either a numeric value or a numeric vector of length 3 (corresponding to RGB). If it's not equal to 0 then the values of the shifted rows or columns will be filled with the user-defined padded_value

Details

If shift_rows is not zero then the image will be sifted row-wise (upsides or downsides depending on the sign). If shift_cols is not zero then the image will be sifted column-wise (right or left depending on the sign).

Value

a matrix or 3-dimensional array where the third dimension is equal to 3

Examples

path = system.file("tmp_images", "1.png", package = "OpenImageR")

image = readImage(path)

res_tr = translation(image, shift_rows = 10, shift_cols = -10)

OpenImageR documentation built on July 9, 2023, 5:43 p.m.