Reversible Data Hiding for Encrypted 3D Model Based on Prediction Error Expansion

Figure 7

Illustrative examples showing the appearance of five models in different phases, include original 3D model, encrypted 3D model, data-embedded 3D model, directly decrypted 3D model, and recovery 3D model. (a) Fairy, (b) boss, (c) Devil, (d) Thing, and (e) Lord.

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