how can i extract video frames through simulink

any idea how can i deal with video frames using matlab simulink..

actually, i tried to make some work arround and use function block and write a function that do the job but there is a problem when it comes to dealing with objects and properties within simulink.. here is my trial

video="abc.avi";

readerobj = mmreader(video);

    numFrames = get(readerobj, 'numberOfFrames') - offset_frame;
        %for k = 1 : numFrames 
        k = 1;
        mov(k).cdata = vidFrames(:,:,:,k);
        mov(k).colormap = [];
        % end
        Lmov=mov;%readerobj;%aviread(video);
        MIm=frame2im(Lmov(k));
        MIm=rgb2gray(MIm);

this is working properly within workspace but not within simulink..

any idea about how to do so within simulink...

Answer 1

[Jason Ghidella]

Have you looked at the Computer Vision System Toolbox? It works with both MATLAB and Simulink.

Here is an overview video for the product: http://www.mathworks.com/videos/computer-vision-system-toolbox-overview-61219.html

And a Simulink Example of road tracking application: http://www.mathworks.com/help/vision/examples/color-based-road-tracking.html