Fills the border of a pixel image with a given value or values.
Usage
padimage(X, value, n=1)
Arguments
X
Pixel image (object of class "im").
value
Single value to be placed around the border of X.
n
Width of border, in pixels.
Value
Another object of class "im", of the same type as X.
Details
The image X will be expanded by a margin of n
pixels, with their values set to value.
The argument value should be a single value (a vector of length
1), normally a value of the same type as the pixel values of X.
It may be NA. Alternatively if X is a
factor-valued image, value can be one of the levels of
X.