/Python/How to count how many cameras you have with python

How to count how many cameras you have with python

import cv2

def camera_amount():
    '''Returns int value of available camera devices connected to the host device'''
    camera = 0
    while True:
        if (cv2.VideoCapture(camera).grab()) is True:
            camera = camera + 1
        else:
            cv2.destroyAllWindows()
            return(int(camera))

How to check how many cameras are connected to device in python\

import cv2

def clearCapture(capture):
    capture.release()
    cv2.destroyAllWindows()

def countCameras():
    n = 0
    for i in range(10):
        try:
            cap = cv2.VideoCapture(i)
            ret, frame = cap.read()
            cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
            clearCapture(cap)
            n += 1
        except:
            clearCapture(cap)
            break
    return n

print countCameras()

Source: stackoverflow.com

Similar codes

31 votes137 views6 answers
Python remove specific character from string
Python
0 vote134 views1 answer
Value = int(line.rsplit(':', 1)[1].strip()) ValueError : invalid literal for int() with base 10: '' grass gis
Python
0 vote144 views1 answer
Plt add y gridlines
Python
2 votes122 views1 answer
Python ping ip address
Python
2 votes137 views2 answers
Count consecutive values in python
Python
0 vote142 views1 answer
Python variable definieren
Python
2 votes135 views2 answers
Python check if internet is available
Python
1 vote140 views1 answer
Why is there a lot of numbers in python
Python
0 vote186 views1 answer
To show the individual process IDs involved
Python
0 vote161 views3 answers
Count items in list python by loop
Python