Plot in Webcam-Live Image

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Alicia Wüst
Alicia Wüst 2021-8-15
回答： Harikrishnan Balachandran Nair 2021-8-19
Hi everybody,
In my GUI I display a video live out of cam in an UIAxes. My plan is to plot detected markers in the image. Right know I don't know how to overlay the image and the plots in the same axes. Does anyone know how to solve this problem?
Best regards.
  1 个评论
Alicia Wüst
Alicia Wüst 2021-8-15
编辑：Alicia Wüst 2021-8-15
In addition here is my code:
if recognized_objects > 0
image(UIAXES,CURRENT_FRAME);
hold (UIAXES);
plot(UIAXES,CenterObjectsMatrix(:,1),CenterObjectsMatrix(:,2),'*r');
else
image(UIAXES, CURRENT_FRAME);
end

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回答（1 个）

Harikrishnan Balachandran Nair
Hi,
From my understanding, you want to preview your live webcam Image on a UIAxes, and plot on the same UIAxes.
Inorder to get an idea on how to preview live webcam video in you GUI, you can refer to the following link
https://www.mathworks.com/matlabcentral/answers/439020-how-to-preview-live-video-in-app-designer-using-videoinput-and-preview
You can use the 'hold' and 'plot' functions to plot your markers on the same UIAxes as the image.
You may refer to the following similar questions as well :
https://www.mathworks.com/matlabcentral/answers/441148-plot-on-top-of-a-live-image-preview
https://www.mathworks.com/matlabcentral/answers/513981-how-do-i-display-an-image-in-app-designer-and-plot-lines-on-top

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