imager: get.locations – R documentation

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get.locations

Return coordinates of subset of pixels

Typical use case: you want the coordinates of all pixels with a value above a certain threshold

get.locations(im, condition)

`im`	the image
`condition`	a function that takes scalars and returns logicals

coordinates of all pixels such that condition(pixel) == TRUE

Simon Barthelme

im <- as.cimg(function(x,y) x+y,10,10)
get.locations(im,function(v) v < 4)
get.locations(im,function(v) v^2 + 3*v - 2 < 30)

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