Need help creating a static rectangle in middle of video window for open cv

asked 2018-12-03 03:55:25 -0600

ojxsdd
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updated 2018-12-04 01:58:06 -0600

Akhil Patel
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Have created a face detection application using open cv, but i have to make a rectangle in the middle of the screen that doesnt move so user can look at it(its for a android application). But i have no idea how to make it. pls help

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answered 2018-12-03 17:28:07 -0600

Qvintus
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Depending on how you want the rectangle to look you could either use OpenGL (If that's an option) or simply cv::Rectangle. Or perhaps I am misunderstanding you? so something like this:

 void rectangle(Mat& img, Point pt1, Point pt2, const Scalar& color, int thickness=1)

void rectangle(Mat& img, Rect rec, const Scalar& color, int thickness=1)

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all is not working T.T most of the code i find is something like this so i doubt that this is wrong, but im stuck with the 'incomplete type is not allowed'

ojxsdd ( 2018-12-03 19:23:50 -0600 )edit

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Asked: 2018-12-03 03:55:25 -0600

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Last updated: Dec 03 '18

Need help creating a static rectangle in middle of video window for open cv edit