“…Most of the recent work reviewed here rely on the concept of quantizing some parameters following the quantization index modulation (QIM) approach [2,6,7,15]. The quantized parameters are in a transformed space, for example, the Walsh-Hadamard [8], or the wavelet domains [2,9,10,11,14,15]. Many of the recent techniques apply singular value decomposition (SVD) [3,6,7] as a means of making the embedding more robust.…”