Skip to content
opencv-wasm

gapi_countNonZero

gapifunctionOpenCV 5.0.0
import { gapi_countNonZero } from '@banou/opencv-wasm'

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

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

Counts non-zero array elements.

The function returns the number of non-zero elements in src :

\sum _{I: \; \texttt{src} (I) \ne0 } 1

Supported matrix data types are CV_8UC1, CV_16UC1, CV_16SC1, CV_32FC1.

Note: Function textual ID is "org.opencv.core.matrixop.countNonZero"

See: mean, min, max

gapi_countNonZero(src: GMat): GOpaque_int;
src

input single-channel matrix.

Returns

The GOpaque_int result. Release returned native handles with using or delete(), including handles nested in results.

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.