@Before
 public void setUp() {
   m = 3;
   n = 3;
   ev = new EmbeddedValidationG8Impl();
   em = new EmbeddingAlgorithmG8Impl();
   array1 = Utils.createRandomByteArray(10, 20);
   array2 = new int[10][20];
   matrixM = ev.getMatrixM(m, n);
   ip = new ImagePlus();
   ImageProcessor ipc = new ByteProcessor(10, 20);
   ipc.setIntArray(array2);
   ip.setProcessor("processor", ipc);
   data = new byte[1];
   data[0] = 63;
 }