gapi_RGB2Gray

gapifunctionOpenCV 5.0.0

import { gapi_RGB2Gray } from '@banou/opencv-wasm'

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

ARGUMENTSsrc

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FUNCTIONgapi_RGB2Gray

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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 RGB color space to gray-scaled.

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

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

Note: Function textual ID is "org.opencv.imgproc.colorconvert.rgb2gray"

See: RGB2YUV

gapi_RGB2Gray(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 ↗

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