Convert Pixel Image to Function of Coordinates
Converts a pixel image to a function of the x and y coordinates.
## S3 method for class 'im' as.function(x, ...)
x |
Pixel image (object of class |
... |
Ignored. |
This command converts a pixel image
(object of class "im") to a function(x,y)
where the arguments x and y are (vectors of) spatial
coordinates. This function returns the pixel values at the
specified locations.
A function in the R language, also belonging to the
class "funxy".
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
Rolf Turner r.turner@auckland.ac.nz
and Ege Rubak rubak@math.aau.dk
d <- setcov(square(1)) f <- as.function(d) f(0.1, 0.3)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.