1import cv2
 2
 3
 4def main(inputs, outputs, parameters, synchronise):
 5    '''
 6    ## Opens your Camera using OpenCV\n
 7    The Camera block opens your webcam using OpenCV and begins capturing the video feed.
 8    This video feed is then propagated forward through the `share_image()` function
 9
10    `while` loop is the part of the program that is executed continuously.
11    It is enabled by default but can be disabled by passing in 0 through the enable wire.
12
13    **Inputs**: None
14
15    **Outputs**: BGR Image
16
17    **Parameters**: None
18    '''
19    cap = cv2.VideoCapture(0)
20    auto_enable = False
21    try:
22        enable = inputs.read_number('Enable')
23    except Exception:
24        auto_enable = True
25    try:
26        while cap.isOpened() and (auto_enable or inputs.read_number('Enable')):
27            ret, frame = cap.read()
28            if not ret:
29                continue
30
31            outputs.share_image("Img", frame)
32            synchronise()
33    except Exception as e:
34        print('Error:', e)
35        pass
36    finally:
37        print("Exiting")
38        cap.release()