class VideoCapture之：： VideoCapture

VideoCapture constructors.

C++: VideoCapture::VideoCapture()

C++: VideoCapture::VideoCapture(const string& filename)

C++: VideoCapture::VideoCapture(int device)

Python: cv2.VideoCapture() → <VideoCapture object>

Python: cv2.VideoCapture(filename) → <VideoCapture object>

Python: cv2.VideoCapture(device) → <VideoCapture object>

C: CvCapture* cvCaptureFromCAM(int device)

Python: cv.CaptureFromCAM(index) → CvCapture

C: CvCapture* cvCaptureFromFile(const char* filename)

Python: cv.CaptureFromFile(filename) → CvCapture

Parameters:

• filename – name of the opened video file
• device – id of the opened video capturing device (i.e. a camera index). If there is a single camera connected, just pass 0.

Note

 

In C API, when you finished working with video, release CvCapture structure with cvReleaseCapture(), or usePtr<CvCapture> that calls cvReleaseCapture() automatically in the destructor.