“…Also, the algorithm attaches only binary watermark images and it became computationally inefficient, since it used vector quantization algorithm for the optimization of adaptive quantization parameters, while indexing the blocks. Many other algorithms (Bhosale et al, 2012;Chen et al, 2012;Coatrieux et al, 2012;Ishikawa et al, 2012;Kandpal et al, 2012;Vargas et al, 2013;Varghese et al, 2014;Walia et al, 2013;Wang et al, 2011;Wang et al, 2012;Wu et al, 2005;Yang et al, 2010;Zareian et al, 2013) also developed in the literature by meeting some requirements of watermarking, but these algorithms also failed in simultaneously meeting other vital requirements of watermarking (Mason et al, 2000) including perceptibility, robustness, orthogonality, protection against attacks etc.…”