Table 1 Quality evaluation of the proposed methods in PSNR (dB)
Image | Resolution | TEI only | TEI + AE with α ( k ) | TEI + AE + AD with β ( k ) | ||
|---|---|---|---|---|---|---|
Linear | Exponent | Linear | Exponent | |||
N1 | 2,048 × 2,560 | 28.692 | 29.222 | 29.221 | 29.248 | 29.250 |
N2 | 2,048 × 2,560 | 23.287 | 23.745 | 23.756 | 23.784 | 23.786 |
N5 | 2,048 × 2,560 | 27.689 | 28.226 | 28.226 | 28.259 | 28.260 |
N4 | 2,560 × 2,048 | 25.866 | 26.421 | 26.448 | 26.509 | 26.509 |
N6 | 2,560 × 2,048 | 35.759 | 36.356 | 36.374 | 36.381 | 36.380 |
N7 | 2,560 × 2,048 | 24.804 | 25.277 | 25.279 | 25.308 | 25.309 |
N8 | 2,560 × 2,048 | 21.040 | 21.393 | 21.412 | 21.438 | 21.441 |
QFHD_P01 | 3,840 × 2,160 | 35.778 | 36.599 | 36.606 | 36.639 | 36.643 |
QFHD_P03 | 3,840 × 2,160 | 25.792 | 26.434 | 26.446 | 26.478 | 26.482 |
QFHD_P04 | 3,840 × 2,160 | 35.359 | 36.010 | 36.060 | 36.066 | 36.074 |
world_satellite | 6,000 × 4,190 | 25.685 | 25.948 | 26.017 | 26.080 | 26.090 |
Average | 28.159 | 28.694 | 28.711 | 28.739 | 28.748 | |