Two watermarking algorithms for 3D nonuniform rational B-spline (NURBS) graphic data are proposed: one is appropriate for the steganography. and the other for watermarking. Instead of directly embedding data into the parameters of NURBS. the proposed algorithms embed data into the 2D virtual images extracted by parameter sampling of 3D model. https://www.nacrack.com/flash-find-Orthofeet-Edgewater-Men-s-Athletic-Shoe-hot-choice/
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