%YUV is used to describe file-formats encoded using YCbCr... That said, you can use:

ycbcr2rgb()

%to work with data on RGB (easier to work) or let databloc be the variable with the frame. Then:

y = databloc(:,:, 1);

cb = databloc(:,:, 2);

cr = databloc(:,:, 3);

%You can display the y, cb, cr component as gray scale image

figure,imshow(y);

figure,imshow(cb);

figure,imshow(cr);

% and deal with them(y, cb, cr) as arrays.

Thank u Paolo Oliveira

http://www.mathworks.com/matlabcentral/fileexchange/36417-yuv-files-reading-and-converting/content/YUV/yuv2avi.m

Use this toolbox