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opencv-wasm

arcLength

geometryfunctionOpenCV 5.0.0
import { arcLength } from '@banou/opencv-wasm'

Use after await initOpenCV(). See the initialization and named imports guide.

ARGUMENTScurve, closed
FUNCTIONarcLength
RETURN TYPEnumber
Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Calculates a contour perimeter or a curve length.

The function computes a curve length or a closed contour perimeter.

arcLength(curve: Mat, closed: boolean): number;
curve

Input vector of 2D points, stored in std::vector or Mat.

closed

Flag indicating whether the curve is closed or not.

Returns

The number result.

Upstream declaration ↗

These signatures describe this package. Upstream documentation can mention optional backends that are absent from this build. Check runtime compatibility before choosing a backend or file format.