Extracts a 2D rectilinear polygon from a binary image encoded as an ndarray. Works in node.js and browserify.
var pack = require("ndarray-pack")
var contour2D = require("contour-2d")
//Get a contour
console.log(contour2D(pack([
[1, 1, 1, 0, 0],
[1, 0, 1, 1, 1],
[1, 1, 1, 1, 1]
])))
//Prints out:
//
// [ [ [ 0, 0 ],
// [ 0, 3 ],
// [ 5, 3 ],
// [ 5, 1 ],
// [ 3, 1 ],
// [ 3, 0 ] ],
// [ [ 2, 1 ],
// [ 2, 2 ],
// [ 1, 2 ],
// [ 1, 1 ] ] ]
//npm install contour-2d
Extracts a contour polygon from the image.
imageis a binary ndarrayflipis an optional flag, which if set reverse the orientations of the loops
Returns A list of loops representing the oriented boundary of the polygon.
(c) 2014 Mikola Lysenko. MIT License
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