from Image Zoomin by Ahmed Samieh
Digital Image Zoomin (gray and color images)

yuv2rgb( I )
function O = yuv2rgb( I )
  [i,j,k] = size(I);
  CONVERTER = [1      0      1.13983
               1   -0.39465  -0.58060 
               1    2.03211     0    ];
  for row = 1:i
    for col = 1:j
      YUV = [I(row, col, 1)
             I(row, col, 2)
             I(row, col, 3)];
      RGB = CONVERTER * double(YUV);
      O(row, col, :) = uint8(YUV);
    end
  end
return

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