Plot on top of a Live Image Preview

Hello,

I am trying to plot a few points on top of a live image preview, but my code returns an error of “Line cannot be a child of Image.” Does anyone know of a way to plot on top of a Live Image, similar to the imageMarker function?

vidRes1 = handles.vid1.VideoResolution;
imWidth1 = vidRes1(1);
imHeight1 = vidRes1(2);
nBands1 = handles.vid1.NumberOfBands;
hImage = image(zeros(imHeight1, imWidth1, nBands1), 'Parent', handles.axes1);
preview(handles.vid1, hImage);
plot(hImage, 250, 300, 'bo');

Thanks,

NOTE:-

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This approach might work for you:

vid = videoinput('winvideo', 1);
vidInfo = imaqhwinfo(vid);
vidRes = vid.VideoResolution;
imWidth = vidRes(1);
imHeight = vidRes(2);
numBands = vid.NumberOfBands;
hFig = figure;
hAxes = axes(hFig);
hImage = image(hAxes, zeros(imHeight, imWidth, numBands, vidInfo.NativeDataType));
preview(vid, hImage);

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Plot on top of a Live Image Preview

Plot on top of a Live Image Preview