0 投票
用户: (120 分)
Is it possible to draw a rectangle directly on the image in the Preview script (python or c++)? The video feed is put directly to HDMI so third party libraries drawn rectangle is below the camera preview.

1个回答

0 投票
用户: (2.7k 分)
I'm sorry. I don't know how to do that right now.

I will study the problem further.
用户: (120 分)
Is it possible to access  pixels values before the preview? If so, it should be possible to modify some values to get a rectangle on the preview.
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