[Android] Get camera frame but show no preview

asked 2016-07-03 11:36:32 -0600

przemulala
16 ●1 ●4

updated 2016-07-03 11:38:35 -0600

Hi guys,

I'd like to process frames from front camera on my Android device. But I've seen that if I don't have JavaCameraView (it's defined in layout XML file) visible, OnCameraFrame() method of CameraBridgeViewBase.CvCameraViewListener2 (my Activity implements it) is not being called.

I've found same problem on StackOverflow, but the solution sadly doesn't work for me.

edit retag flag offensive close merge delete

add a comment

1 answer

Sort by » oldest newest most voted

answered 2016-07-05 14:27:50 -0600

przemulala
16 ●1 ●4

I have found the answer that worked for me, so I'm sharing it with the community:

You can set your preview (in this case a CameraBridgeViewBase) transparent by setting the alpha value of the view, with 0 being completely invisible.

mOpenCvCameraView.setAlpha(0);

This should make your preview "disappear".

I have also posted it to above linked thread on a StackOverflow forum.