A Blind Watermarking Model of the 3D Object and the Polygonal Mesh Objects for Securing Copyright

Table 2

Comparison of recent schemes.

Scheme	Cover media	Watermark sequence	Embedding color space	Domain	Capacity	Is blind?
Chow et al. [38]	Grayscale image	QR code	Grayscale	DWT-DCT	0.0002	Yes
Amini et al. [40]	Grayscale image	Binary bits	Grayscale	DWT	0.0156	Yes
Rosales-Roldan et al. [39]	Color image	QR code	YCbCr	SVD-DWT-DCT	0.0833	Yes
Patvardhan et al. [41]	Color image	QR code	YCbCr	SVD-DWT	0.1667	No
Ayubi et al. [12]	Video	2D binary image	RGB	IWT-DWT-CT	0.0034	Yes
Hou et al. [42]	3D printed object	Binary pattern	High masking regions	Visual masking	1 bit	Yes
Delmotte et al. [43]	3D printed object	Binary bits	G-code	Layer thickness	>64 bits	Yes
Jiang et al. [44]	3D object	Binary bits	Vertices	Encrypted domain	0.3692	Yes
Cayre et al. [45]	3D object	Binary bits	Vertices	Spatial	0.8772	Yes
Wu et al. [46]	3D object	2D binary image	Vertices	Spatial	0.9969	No
Khalil et al. [18]	3D object	Grayscale image	Vertices	Spatial	2.6667	Yes
The proposed	3D object	Grayscale image	Vertices	DCT	8	Yes