imager: imhessian – R documentation

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imhessian

Compute image hessian.

Compute image hessian.

imhessian(im, axes = c("xx", "xy", "yy"))

`im`	an image
`axes`	Axes considered for the hessian computation, as a character string (e.g "xy" corresponds to d/(dx*dy)). Can be a list of axes. Default: xx,xy,yy

an image, or a list of images

imhessian(boats,"xy") %>% plot(main="Second-derivative, d/(dx*dy)")

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