CODEWITHSUNDEEP
python-2.7opencvcomputer-vision
Sarvagya Gupta
Sarvagya Gupta

Reputation: 907

OpenCV, webcam window not opening

I am very new to computer vision and using the OpenCV libraries for some basic functions like opening a window for the camera. I used the code from the OpenCV book I run a code from there. A part is shown below:

def run(self):
        """Run the main loop"""
        self._windowManager.createWindow()
        while self._windowManager.isWindowCreated:
            self._captureManager.enterFrame()
            frame = self._captureManager.frame

            self._captureManager.exitFrame()
            self._windowManager.processEvents()

I get the following error:

'module' object has no attribute 'nameWindow'

And this the line it points to:

    139     def createWindow (self):
    140            cv2.namedWindow(self._windowName)
--> 141            self._isWindowCreated = True
    142     def show(self, frame):
    143            cv2.imshow(self._windowName, frame)

Can someone help me what's going on?

Upvotes: 1

Views: 11538

Answers (1)

user3543300
user3543300

Reputation: 507

It's hard to say from the code what the problem is, but I believe is cv2.namedWindow()not nameWindow. Also, add cv2.waitKey(1) after the imshow() function call.

Here's a simpler way to open the webcam using python and opencv:

import cv2
video_capture = cv2.VideoCapture(0)

cv2.namedWindow("Window")

while True:
    ret, frame = video_capture.read()
    cv2.imshow("Window", frame)

    #This breaks on 'q' key
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

video_capture.release()
cv2.destroyAllWindows()

Upvotes: 5

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