cv2 和 pyqt4 无法一起工作

cv2 和 pyqt4 无法一起工作

我尝试将 cv2 与 PyQt4 小部件一起使用,但一直收到此错误:

(python3:3974): GLib-GObject-WARNING **: 12:41:27.117: 无法注册现有类型“GdkDisplayManager”

(python3:3974): GLib-CRITICAL **: 12:41:27.118: g_once_init_leave: 断言‘result != 0’失败

(python3:3974): GLib-GObject-CRITICAL **: 12:41:27.118: g_object_new_with_properties: 断言‘G_TYPE_IS_OBJECT (object_type)’失败

我确信我的 cv2 代码运行良好

import cv2
def takePicture():
    cap = cv2.VideoCapture(1)
    while(True):
        ret, frame= cap.read()
        cv2.imshow('frame', frame)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
    cap.release()
    cv2.destroyAllWindows()

但是当我将按钮连接到它时,出现了上面的错误:

from PyQt4 import QtGui
 app = QtGui.QApplication(sys.argv)
 take_picture_button = QtGui.QPushButton('Take picture')
 from takePicture import takePicture
 take_picture_button.clicked.connect(takePicture)
 take_picture_button.show()
  • Ubuntu 18.04
  • python3.6.7
  • PyQt4?
  • 简历2?

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