Python Multiprocess Can't Pickle Opencv Videocapture Object

I am trying to create a independent process to handle my image acquire from camera. But multiprocessing seems to have difficulty pickling videocapture module from opencv. Can anyon

Solution 1:

I am not an expert, but i had the same issue and i solved in this way.

Instead of using cv2.VideoCapture(0) in init fuction

def__init__(self, ):
    self.process = Process(target = self.run, args=())
    self.exit = mp.Event()
    self.logger.info("initialize class")
    self.capture = cv2.VideoCapture(0)

I moved the initialization to run function

defrun(self):
    self.capture = cv2.VideoCapture(0)
    whilenotself.exit.is_set():

And it works for me. Maybe it helps you too