How can i adjust brightness of a live video in image acquisition?

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Sanjay Yadav
Sanjay Yadav 2017-1-20
评论： Rena Berman 2021-5-6
I am using the Image Acquisition Toolbox to create a simple interactive GUI that should allow the user to preview the image and dynamically adjust the brightness of the video feed.
I'm using a slider to adjust the value of brightness between(-64 to 64), code looks like this:
vid = videoinput('winvideo',1);
src = getselectedsource(vid);
preview(vid);
bri = get(handles.BrightnessSlider,'Value');
if(bri > -65 || bri < 65 )
stoppreview(vid);
src.Brightness = bri;
preview(vid);
end
Problem here is that brightness isn't changing when I move the slider, the value on slider does change.
Please help me solving this error. Thanks in advance.

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回答（1 个）

Walter Roberson
Walter Roberson 2017-1-20
MATLAB does not use {} for code blocks.

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