circle

Image processingfunctionOpenCV 5.0.0

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

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

ARGUMENTSimg, center, radius, color

FUNCTIONcircle

RETURN TYPEvoid

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

example: samples/cpp/tutorial_code/ImgProc/basic_drawing/Drawing_2.cpp An example using drawing functions Draws a circle.

The function cv::circle draws a simple or filled circle with a given center and radius.

circle(img: Mat, center: Point, radius: number, color: Scalar, thickness: number, lineType: number, shift: number): void;

4 available overloads

circle(img: Mat, center: Point, radius: number, color: Scalar): void;

circle(img: Mat, center: Point, radius: number, color: Scalar, thickness: number): void;

circle(img: Mat, center: Point, radius: number, color: Scalar, thickness: number, lineType: number): void;

circle(img: Mat, center: Point, radius: number, color: Scalar, thickness: number, lineType: number, shift: number): void;

img: Input/output value, modified by the native operation. Image where the circle is drawn.
center: Center of the circle.
radius: Radius of the circle.
color: Circle color.
thickness: Thickness of the circle outline, if positive. Negative values, like #FILLED, mean that a filled circle is to be drawn.
lineType: Type of the circle boundary. See #LineTypes
shift: Number of fractional bits in the coordinates of the center and in the radius value.

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.