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copied!<p>You can read an AVI file into MATLAB <a href="http://www.mathworks.com/access/helpdesk/help/techdoc/import_export/f5-132080.html#f5-146610" rel="nofollow noreferrer">using the built-in <code>mmreader</code> class</a>. Once you have the AVI frames read into a structure array of movie frames, you can save them as a YUV file using the <code>saveFileYuv</code> function found in this submission from the <a href="http://www.mathworks.com/matlabcentral/fileexchange/" rel="nofollow noreferrer">MathWorks File Exchange</a>:</p> <ul> <li><a href="http://www.mathworks.com/matlabcentral/fileexchange/6318-convert-yuv-cif-420-video-file-to-image-files" rel="nofollow noreferrer">Convert YUV CIF 4:2:0 video file to image files</a> by <a href="http://www.mathworks.com/matlabcentral/fileexchange/authors/16240" rel="nofollow noreferrer">Da Yu</a></li> </ul> <p>Your code might look something like this:</p> <pre><code>%# Get the video data: vidObj = mmreader('myVideo.avi'); %# Create a video file object nFrames = vidObj.NumberOfFrames; %# Get the number of frames vidHeight = vidObj.Height; %# Get the image height vidWidth = vidObj.Width; %# Get the image width %# Preallocate the structure array of movie frames: mov(1:nFrames) = struct('cdata',zeros(vidHeight,vidWidth,3,'uint8'),... 'colormap',[]); %# Note that colormap is empty! %# Read each video frame into the structure array: for k = 1:nFrames mov(k).cdata = read(vidObj,k); %# Place frame k in the cdata field of mov(k) end %# Save the movie frame array as a YUV 4:2:0 file: saveFileYuv(mov,'myVideo.yuv',1); </code></pre>

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