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opencv-wasm

gapi_BGR2Gray

gapifunctionOpenCV 5.0.0
import { gapi_BGR2Gray } from '@banou/opencv-wasm'

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

ARGUMENTSsrc
FUNCTIONgapi_BGR2Gray
RETURN TYPEGMat
Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Converts an image from BGR color space to gray-scaled.

The conventional ranges for B, G, and R channel values are 0 to 255. Resulting gray color value computed as

\texttt{dst} (I)= \texttt{0.114} * \texttt{src}(I).B + \texttt{0.587} * \texttt{src}(I).G  + \texttt{0.299} * \texttt{src}(I).R

Note: Function textual ID is "org.opencv.imgproc.colorconvert.bgr2gray"

See: BGR2LUV

gapi_BGR2Gray(src: GMat): GMat;
src

input image: 8-bit unsigned 3-channel image CV_8UC1.

Returns

The GMat 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.