isContourConvex

geometryfunctionOpenCV 5.0.0

import { isContourConvex } from '@banou/opencv-wasm'

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

Explore visually: Convex hulls and defects →

Wrap a point set in its smallest convex boundary and measure inward deviations.

VISUAL WALKTHROUGHShape

REFERENCE INPUTShape with a concavity

The inward notch distinguishes the original boundary from its convex hull.

→

RESULTOuter convex envelope

For convexity defects, compare the original contour with hull edges.

Illustrative example. The stages explain the method; they are not a live OpenCV execution.

Tests a contour convexity.

The function tests whether the input contour is convex or not. The contour must be simple, that is, without self-intersections. Otherwise, the function output is undefined.

isContourConvex(contour: Mat): boolean;

contour

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

Returns

The boolean 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.