我正在尝试创建一个独立的过程来处理我从相机获取的图像。但是,多处理似乎很难从opencv中选取视频捕获模块。有人可以建议解决方法吗?我正在使用python 3.7.1
from multiprocessing import Process
import multiprocessing as mp
import time
import logging
import logging.handlers
import sys
import logging
from enum import Enum
import cv2
class Logger():
@property
def logger(self):
component = "{}.{}".format(type(self).__module__, type(self).__name__)
#default log handler to dump output to console
return logging.getLogger(component)
class MyProcess(Logger):
def __init__(self, ):
self.process = Process(target = self.run, args=())
self.exit = mp.Event()
self.logger.info("initialize class")
self.capture = cv2.VideoCapture(0)
def run(self):
while not self.exit.is_set():
pass
print("You exited!")
def shutdown(self):
print("Shutdown initiated")
self.exit.set()
if __name__ == "__main__":
p = MyProcess()
p.process.start()
print( "Waiting for a while")
time.sleep(3)
p.shutdown()
time.sleep(3)
print("Child process state: {}".format(p.process.is_alive()))
特定于返回错误的内容表示不能对它的视频捕获对象进行腌制。
转储中的文件“ C:\ Program Files(x86)\ Microsoft Visual Studio \ Shared \ Anaconda3_64 \ lib \ multiprocessing \ reduction.py”,第60行 ForkingPickler(文件,协议).dump(obj)
TypeError:无法腌制cv2.VideoCapture对象
答案 0 :(得分:0)
我不是专家,但我遇到了同样的问题,我就是这样解决的。
而不是在初始化函数中使用 cv2.VideoCapture(0)
def __init__(self, ):
self.process = Process(target = self.run, args=())
self.exit = mp.Event()
self.logger.info("initialize class")
self.capture = cv2.VideoCapture(0)
我将初始化移动到运行函数
def run(self):
self.capture = cv2.VideoCapture(0)
while not self.exit.is_set():
它对我有用。 或许对你也有帮助