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opencv-wasm

gapi_NV12toGray

gapifunctionOpenCV 5.0.0
import { gapi_NV12toGray } from '@banou/opencv-wasm'

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

ARGUMENTSsrc_y, src_uv
FUNCTIONgapi_NV12toGray
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 NV12 (YUV420p) color space to gray-scaled. The function converts an input image from NV12 color space to gray-scaled. The conventional ranges for Y, U, and V channel values are 0 to 255.

Output image must be 8-bit unsigned 1-channel image CV_8UC1.

Note: Function textual ID is "org.opencv.imgproc.colorconvert.nv12togray"

See: YUV2RGB, NV12toBGR

gapi_NV12toGray(src_y: GMat, src_uv: GMat): GMat;
src_y

input image: 8-bit unsigned 1-channel image CV_8UC1.

src_uv

input image: 8-bit unsigned 2-channel image CV_8UC2.

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.