polylines

Image processingfunctionOpenCV 5.0.0

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

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

ARGUMENTSimg, pts, isClosed, color

FUNCTIONpolylines

RETURN TYPEvoid

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

Draws several polygonal curves.

polylines(img: Mat, pts: MatVector, isClosed: boolean, color: Scalar, thickness: number, lineType: number, shift: number): void;

4 available overloads

polylines(img: Mat, pts: MatVector, isClosed: boolean, color: Scalar): void;

polylines(img: Mat, pts: MatVector, isClosed: boolean, color: Scalar, thickness: number): void;

polylines(img: Mat, pts: MatVector, isClosed: boolean, color: Scalar, thickness: number, lineType: number): void;

polylines(img: Mat, pts: MatVector, isClosed: boolean, color: Scalar, thickness: number, lineType: number, shift: number): void;

img: Input/output value, modified by the native operation. Image.
pts: Array of polygonal curves.
isClosed: Flag indicating whether the drawn polylines are closed or not. If they are closed, the function draws a line from the last vertex of each curve to its first vertex.
color: Polyline color.
thickness: Thickness of the polyline edges.
lineType: Type of the line segments. See #LineTypes
shift: Number of fractional bits in the vertex coordinates.

The function cv::polylines draws one or more polygonal curves.

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.