Create Level 2 S-Function Block from .M Filfe

my .m file is pasted below

%%%%%%%%%%%%%%%%%%%%%%%%%%%

function showcameraonly

% Set up camera camera = cv.VideoCapture; camera.open('http://jamesquags.ddns.net/mjpg/video.mjpg')

pause(1); % Necessary in some environment. See help cv.VideoCapture

% Set up display window window = figure('KeyPressFcn',@(obj,evt)setappdata(obj,'flag',true)); setappdata(window,'flag',false);

% Start main loop while true % Grab and preprocess an image im = camera.read;

    % Draw results
    imshow(im);

    % Terminate if any user input
    flag = getappdata(window,'flag');
    if isempty(flag)||flag, break; end
    pause(.000000000000000000000000001);
end

% Close close(window);

end

%%%%%%%%%%%%%

This is a pretty good way to get live streaming video into Matlab for Computer Vision purposes. It references the OpenCV library and MEX files to allow Matlab to use them. This is a great method; however, it is very difficult to create a Simulink Block out of the code. I would like to create a Level 2 S-Function Block. Can anyone help me with this?

The Simulink system I would like to integrate this in is attached as a picture.

Thank you,

James

Answer 1

[Dima Lisin]

Hi James,

If you have the Image Acquisition Toolbox, then you can use the From Video Device block.

[james]

Dima,

Thank you very much for the response. Unfortunately we are working with a Power Over Ethernet IP Camera, and, as far as I know, there is no IP Camera support for Matlab. The From Video Device block does not support IP addresses.

-James