Table 1 Different quality factors for stadium image
From: Secure and efficient DRM watermark algorithm of forensics in mobile internet
Quality factor | CIR (%) | PSNR (dB) | Bit error (%) | Is tampered? |
|---|---|---|---|---|
100 | 169.69 | 39.00 | 0 | NO |
95 | 42.25 | 39.03 | 0 | NO |
90 | 11.26 | 38.64 | 0 | NO |
85 | − 10.7 | 38.99 | 0.0001 | NO |
80 | − 18.34 | 38.44 | 0.0004 | NO |
75 | − 23.57 | 37.80 | 0.0010 | NO |
70 | − 28.26 | 37.36 | 0.0017 | NO |