timed capture using an webcam

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debasish
debasish 2012-7-3
hi..
i am working with a face recognition project.I have a GUI with an axes and a pushbutton 'START'. Pressing 'START' starts the video onject and displays the preview in the axes.I have to press another button 'CAPTURE' to get a snapshot.
However,i want the functionality that the webcam captures automatically after pressing the 'START' button, while satisfying certain light conditions. I am quite new to timers and cant figure a way out.
Kindly help me....thanks a lot.

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