imager: imgradient – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

imgradient

Compute image gradient

Light interface for get_gradient. Refer to get_gradient for details on the computation.

imgradient(im, axes = "xy", scheme = 3)

`im`	an image of class cimg
`axes`	direction along which to compute the gradient. Either a single character (e.g. "x"), or multiple characters (e.g. "xyz"). Default: "xy"
`scheme`	numerical scheme (default '3', rotation invariant)

an image or a list of images, depending on the value of "axes"

Simon Barthelme

grayscale(boats) %>% imgradient("x") %>% plot
imgradient(boats,"xy") #Returns a list

Image Processing Library Based on 'CImg'

v0.42.10

LGPL-3

Authors

Simon Barthelme [aut], David Tschumperle [ctb], Jan Wijffels [ctb], Haz Edine Assemlal [ctb], Shota Ochi [cre]

Initial release