IMAQPLOT - Preview video data using callbacks
Demonstration of previewing Image Acquisition Toolbox video using Handle Graphics and callbacks.
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IMAQPLOT is a simple demonstration of previewing video data using the toolbox's TimerFcn callback. IMAQPLOT also allows users to integrate the video preview into any MATLAB GUI. These are capabilities that are present in the toolbox's PREVIEW command, but are presented here as a demonstration of TimerFcn callback.
Using toolbox callback properties, you can configure a video input object to generate a live image plot display.
Do you want a basic preview window created for you? Simply call:
obj = videoinput('matrox', 1);
obj.TimerFcn = @imaqplot;
obj.TimerPeriod = 0.1;
obj.FramesPerTrigger = Inf;
start(obj)
Do you want to add a preview window to an existing GUI? Simply provide IMAQPLOT a handle to an image object and it will update it for you:
obj = videoinput('dt', 1);
obj.TimerFcn = {@imaqplot, hImage};
obj.TimerPeriod = 0.1;
obj.FramesPerTrigger = Inf;
start(obj)
引用
David Tarkowski (2026). IMAQPLOT - Preview video data using callbacks (https://jp.mathworks.com/matlabcentral/fileexchange/5438-imaqplot-preview-video-data-using-callbacks), MATLAB Central File Exchange. に取得済み.
