skimage2.measure.approximate_polygon#
- skimage2.measure.approximate_polygon(coords, tolerance)[source]#
Approximate a polygonal chain with the specified tolerance.
It is based on the Douglas-Peucker algorithm.
Note that the approximated polygon is always within the convex hull of the original polygon.
- Parameters:
- coords(K, 2) array
Coordinate array.
- tolerancefloat
Maximum distance from original points of polygon to approximated polygonal chain. If tolerance is 0, the original coordinate array is returned.
- Returns:
- coords(L, 2) array
Approximated polygonal chain where L <= K.
References
