extractChannel

Core and matricesfunctionOpenCV 5.0.0

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

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

ARGUMENTSsrc, dst, coi

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FUNCTIONextractChannel

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RETURN TYPEvoid

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

Extracts a single channel from src (coi is 0-based index)

See: mixChannels, split

extractChannel(src: Mat, dst: Mat, coi: number): void;

src

input array

dst

Output destination, filled by the native operation. output array

coi

index of channel to extract

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.