Why is there overlayed square and number on Raspberry Pi camera image taken using MATLAB? How to remove?
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%%UPDATE: Using wcam instead of cameraboard solved my issue for now. But I would still like to know how to solve issue with cameraboard()
I took a photo using my RaspberryPi camera through Matlab and the image I get has a square and number 0 on it. What causes this and how to remove it? I've attached the image and the
mypi=raspi('raspberrypi');
mycam = cameraboard(mypi)
img = snapshot(mycam);
imagesc(img);
drawnow
code used.![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/874745/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/874745/image.png)
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回答 (2 件)
Obed Rios
2022 年 5 月 4 日
It appears I have that strange rectangle when using my camera board with Matlab after using raspistill with ROI. After rebooting my Rpi, the rectangle was gone. Best regards
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Stuart Johnson
2023 年 1 月 16 日
I could have sworn this did not work the first couple of times I tried it. But, now the mystery box is gone. Sure seems something is trying to turn on some object detection / annotation pipeline!
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