Extract outline coordinates from a mask raster

Source: R/zzz_algos.R

Image must already be a 2D binary raster. See examples in image_mask

algo_Conte(img, x = image_center(img))

Arguments

img

matrix
x

where to start a length 2 integer vector. Default to image_center

Note

Used to be the core of retired Momocs' import_jpg

References

Borrowed from Julien Claude's (2008) Morphometrics using R. Retained argument naming.