Click or drag to resize

VideoCaptureRetrieve Method (Mat, CameraChannels)

Decodes and returns the grabbed video frame. The method decodes and returns the just grabbed frame. If no frames has been grabbed (camera has been disconnected, or there are no more frames in video file), the method returns false and the function returns an empty image (with %cv::Mat, test it with Mat::empty()).

Namespace:  OpenCvSharp
Assembly:  OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0
Syntax
public bool Retrieve(
	Mat image,
	CameraChannels streamIdx
)

Parameters

image
Type: OpenCvSharpMat
the video frame is returned here. If no frames has been grabbed the image will be empty.
streamIdx
Type: OpenCvSharpCameraChannels
non-zero streamIdx is only valid for multi-head camera live streams

Return Value

Type: Boolean

[Missing <returns> documentation for "M:OpenCvSharp.VideoCapture.Retrieve(OpenCvSharp.Mat,OpenCvSharp.CameraChannels)"]

See Also