A mesh watermarking approach for appearance attributes

We describe an algorithm to watermark appearance attributes, as well as the shape of the mesh. Appearance attributes are potential watermarking primitives and the watermarking approach for them can be generalized from that for the shape. The major challenge of generalization is that the watermarking for appearance attributes has more constraints. We focus on this challenge. Especially for the normal vector, we embed the watermark by modifying its orientation, not magnitude. Results show our scheme effectively improves the capacity and enhances the robustness of mesh watermarking.