drawFrameAxes

Image processingfunctionOpenCV 5.0.0

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

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

ARGUMENTSimage, cameraMatrix, distCoeffs, rvec

FUNCTIONdrawFrameAxes

RETURN TYPEvoid

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

Draw axes of the world/object coordinate system from pose estimation. See: solvePnP

drawFrameAxes(image: Mat, cameraMatrix: Mat, distCoeffs: Mat, rvec: Mat, tvec: Mat, length: number, thickness: number): void;

2 available overloads

drawFrameAxes(image: Mat, cameraMatrix: Mat, distCoeffs: Mat, rvec: Mat, tvec: Mat, length: number): void;

drawFrameAxes(image: Mat, cameraMatrix: Mat, distCoeffs: Mat, rvec: Mat, tvec: Mat, length: number, thickness: number): void;

image: Input/output value, modified by the native operation. Input/output image. It must have 1 or 3 channels. The number of channels is not altered.
cameraMatrix: Input 3x3 floating-point matrix of camera intrinsic parameters. \cameramatrix{A}
distCoeffs: Input vector of distortion coefficients \distcoeffs. If the vector is empty, the zero distortion coefficients are assumed.
rvec: Rotation vector (see Rodrigues ) that, together with tvec, brings points from the model coordinate system to the camera coordinate system.
tvec: Translation vector.
length: Length of the painted axes in the same unit than tvec (usually in meters).
thickness: Line thickness of the painted axes.

This function draws the axes of the world/object coordinate system w.r.t. to the camera frame. OX is drawn in red, OY in green and OZ in blue.

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.