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opencv-wasm

findContoursLinkRuns

Image processingfunctionOpenCV 5.0.0
import { findContoursLinkRuns } from '@banou/opencv-wasm'

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

ARGUMENTSimage, contours, hierarchy
FUNCTIONfindContoursLinkRuns
RETURN TYPEvoid
Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Find contours using link runs algorithm

This function implements an algorithm different from cv::findContours:

  • doesn't allocate temporary image internally, thus it has reduced memory consumption
  • supports CV_8UC1 images only
  • outputs 2-level hierarhy only (RETR_CCOMP mode)
  • doesn't support approximation change other than CHAIN_APPROX_SIMPLE In all other aspects this function is compatible with cv::findContours.
findContoursLinkRuns(image: Mat, contours: MatVector, hierarchy: Mat): void;
image

image argument (Mat).

contours

Output destination, filled by the native operation. contours argument (MatVector).

hierarchy

Output destination, filled by the native operation. hierarchy argument (Mat).

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.