Returns the specified VideoCapture property

value = cap.get(prop)

Input

• prop Property identifier. It can be specified as a string (one of the recognized properties), or directly as its corresponding integer code.

Output

• value Value for the specified property (as a double). Value 0 is returned when querying a property that is not supported by the backend used by the VideoCapture instance.

Note

Reading/writing properties involves many layers. Some unexpected result might happens along this chain. VideoCapture -> API Backend -> Operating System -> Device Driver -> Device Hardware The returned value might be different from what really used by the device or it could be encoded using device dependent rules (eg. steps or percentage). Effective behaviour depends from device driver and API Backend.

Example

All the following are equivalent:

b = cap.Brightness
b = cap.get('Brightness')
b = cap.get(10)  % enum value defined in OpenCV source code