I am accessing the webcam using multiprocessing module whose GUI has been rendered by Tkinter.
With reference to the Multiprocessing with PIL, is there a way to get the webcam's specifications like resolution, exposure time, using this module?
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Anuradha
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That depends: the GUI is calling commands from a communication library written to interact with the camera (e.g. a dll). That most likely has the commands you need to poll the camera about all of its settings. What is the name of the GUI application you're using (consider adding the website too). – Oliver W. Mar 18 '15 at 12:08
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I am using Tkinter . Have a look at http://www.tutorialspoint.com/python/python_gui_programming.htm – Anuradha Mar 18 '15 at 12:10
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Yes, you mentioned that. But Tkinter is just the GUI layer. In the module it will be using a library that accesses the camera. What is the name of that module? – Oliver W. Mar 18 '15 at 12:12
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That's an Open CV module named VideoCapture() . I guess I got an answer to my question as Open CV has options of accessing and changing the Webcam parameters. – Anuradha Mar 18 '15 at 12:17
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With reference to the link Display an OpenCV video in tkinter using multiprocessing the Process Function:
p = Process(target=image_capture, args=(queue,))
transfers the command to function image_capture, which makes an instance of VideoCapture named vidFile. This instance can be used to find the camera specifications. Use:
print "Exposure Time " + str(cap.get(cv.CV_CAP_PROP_EXPOSURE))
cap.set(15, -5)
# 15 is used for Exposure time
# and second parameter is the value
# to which you are setting the exposure time
Refer to setting-camera-parameters-in-opencv-python for setting other parameters.
