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Draw circles on opencv camera preview

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Hi, i am trying to draw circles on a CameraBridgeViewBase - opencv camera on android, But i need to do it on a point that i am not in onCameraFrame any more - i am doin tracing , and i need to check why my image is not tracking the way i whant, so on the point where i calculate the average movement of the camera to know where to put the image, here i need to draw the circle - it is on a separate thread, so i can not use Core.circle(), Is there a way to do such a thing? how? Thanks!!!

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