A Novel Improved Reversible Visible Image Watermarking Algorithm Based on Grad-CAM and JND

Figure 11

Reversible watermarked image wood rabbit embedded watermark deer with different parameter and , all  = 1: (a) original cover image, (b)  = 0.3 (PSNR = 34.6251 dB), (c)  = 0.5 (PSNR = 25.6902 dB), and (d)  = 1.0 (PSNR = 24.0495 dB).

(a)

(b)

(c)

(d)