Figure 5
From: Robust digital image watermarking scheme using wave atoms with multiple description coding
These images showing the robustness for the watermark and the imperceptibility for the watermarked image affected by selecting various embedding parameters (a) Effect of α a , α b , and δ on PSNR value. (b) Effect of αa, αb, and δ on NC value. (c) Effect of αc, αd, and δ on PSNR value. (d) Effect of αc, αd, and δ on NC value. (e) Effect of r and δ on NC value. (f) Effect of r and δ on PSNR value.