Comparisons of the detection and recovery results.

(a) Marked image. (b) Tampered image. (c) Tampered regions. (d) Second-stage detection of Hu et al.’s method. (e) First-stage recovery of Hu et al.’s method. (f) Second-stage recovery of Hu et al.’s method. (g) Second-stage detection of the proposed method. (h) First-stage recovery of the proposed method. (i) Second-stage recovery of the proposed method.