Fig. 5From: Adaptive reversible image watermarking algorithm based on IWT and level setIterative results of Lena image based on geometric contour activity model under rotation and shear attack. a Original Lena image. b Lena rotates10°. c Lena rotates 30°. d Lena rotates 45°. e Lena cut 10% from the left. f Lena cut 10% from the right. g Lena cut 10% from the top. h Lena cut 10% from the left and the top, respectivelyBack to article page