HoughLinesPointSet

Image processingfunctionOpenCV 5.0.0

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

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

ARGUMENTSpoint, lines, lines_max, threshold

FUNCTIONHoughLinesPointSet

RETURN TYPEvoid

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

Finds lines in a set of points using the standard Hough transform.

The function finds lines in a set of points using a modification of the Hough transform.

HoughLinesPointSet(point: Mat, lines: Mat, lines_max: number, threshold: number, min_rho: number, max_rho: number, rho_step: number, min_theta: number, max_theta: number, theta_step: number): void;

point: Input vector of points. Each vector must be encoded as a Point vector (x,y). Type must be CV_32FC2 or CV_32SC2.
lines: Output destination, filled by the native operation. Output vector of found lines. Each vector is encoded as a vector<Vec3d> (votes, rho, theta). The larger the value of 'votes', the higher the reliability of the Hough line.
lines_max: Max count of Hough lines.
threshold: %Accumulator threshold parameter. Only those lines are returned that get enough votes ( >\texttt{threshold} ).
min_rho: Minimum value for \rho for the accumulator (Note: \rho can be negative. The absolute value |\rho| is the distance of a line to the origin.).
max_rho: Maximum value for \rho for the accumulator.
rho_step: Distance resolution of the accumulator.
min_theta: Minimum angle value of the accumulator in radians.
max_theta: Upper bound for the angle value of the accumulator in radians. The actual maximum angle may be slightly less than max_theta, depending on the parameters min_theta and theta_step.
theta_step: Angle resolution of the accumulator in radians.

Upstream declaration ↗

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