video streaming GUI design

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I want to design a GUI that capture video stream from camera plugged to USB port. I am looking for sources to read about how to do that, and if possible some open sources code.

Also, what would be the easiest language to program this kind of design ?
 

You can use matlab

here is the code

% Create video input object.
vid = videoinput('dcam',1,'Y8_1024x768')

% Set video input object properties for this application.
% Note that example uses both SET method and dot notation method.
set(vid,'TriggerRepeat',Inf);
vid.FrameGrabInterval = 5;

% Set value of a video source object property.
vid_src = getselectedsource(vid);
set(vid_src,'Tag','motion detection setup');

% Create a figure window.
figure;

% Start acquiring frames.
start(vid)

% Calculate difference image and display it.
while(vid.FramesAcquired<=100) % Stop after 100 frames
data = getdata(vid,2);
diff_im = imabsdiff(data,:,:,1),data,:,:,2));
imshow(diff_im);
end

stop(vid)
 

Thanks for replaying back, but I have to design a GUI to display the video streaming.
 

Is it possible to make the designed GUI in matlab to capture the images from an FPGA development board instead of camera ? Because my project is a camera that will by synchronized to an FPGA board and then to the PC through a USB. And can I have some features in the GUI like calculating the fps ?
 

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