Accessing the webcam's hardware settings

Question

Java

Good day.
I need to receive data from a webcam (currently logitech c270) for automatic processing. To access the camera and further manipulate the data, I use OpenCV (under C ++). Everything is more than satisfied, but there is a nuance. The conditions for surveying and evaluating the data obtained are very specific. And far from always the optimal result will have a picture taken by a machine with a configured camera. From a high school physics course, I remember that the decisive parameter when shooting each frame is shutter speed and aperture. (And if the aperture in the webcam is in doubt, then the excerpt should be an adjustable parameter).
Is it possible to access the hardware settings of the camera, and where can I get the necessary information?
(If there is a solution that allows you to move from C ++ to Java, I believe that we did not appear because of the big bang)

Answer 1

Use CV_CAP_PROP_EXPOSURE , Luke!