Table 6 Mean error value comparisons between our method and the AIVC algorithm for various block sizes
From: Wavelet-based color modification detection based on variance ratio
Demosaicing method | Shifted hue degree | 32 × 32 | 64 × 64 | 128 × 128 | 256 × 256 | 512 × 512 |
|---|---|---|---|---|---|---|
Bilinear | AIVC | 5.00 | 2.29 | 0.75 | 0.24 | 0.11 |
Proposed | 3.00 | 2.01 | 1.55 | 1.26 | 1.29 | |
AHD | AIVC | 30.80 | 22.86 | 19.46 | 17.02 | 15.11 |
Proposed | 13.67 | 9.03 | 7.21 | 6.26 | 5.65 | |
AMaZE | AIVC | 33.31 | 26.18 | 23.04 | 21.37 | 17.61 |
Proposed | 20.99 | 15.17 | 13.54 | 10.99 | 9.84 | |
DCB | AIVC | 35.40 | 35.31 | 35.38 | 33.90 | 32.95 |
Proposed | 10.88 | 6.73 | 4.09 | 2.66 | 1.57 | |
LMMSE | AIVC | 34.71 | 25.09 | 19.20 | 15.51 | 12.42 |
Proposed | 33.49 | 22.20 | 16.17 | 13.51 | 11.84 | |
VNG | AIVC | 19.07 | 14.92 | 11.91 | 10.52 | 10.27 |
Proposed | 9.79 | 7.61 | 6.49 | 4.95 | 5.21 | |
HPHD | AIVC | 48.35 | 41.48 | 35.51 | 31.52 | 28.13 |
Proposed | 36.37 | 26.69 | 22.31 | 21.86 | 20.46 |