| Table 4: Compression ratio and PSNR values for raw CBERS-2B CCD images. |
| | DPCM | JPEG-LS | | CCSDS-IDC | | JPEG-XR | | | | | | | | Integer DWT strip-based fixed-rate | | All | |
NoFlexbits |
NoHighpass |
DC-only | | |
Near = 0
Lossless |
Near = 1 |
Near = 2 |
Near = 3 | |
Bpp = 4
Lossless |
Bpp = 2 |
Bpp = 1 |
Bpp = 0.5 |
Bpp = 0.25 | |
Qp = 0
Lossless |
QP = 4 |
QP = 10 | |
QP = 0 |
QP = 0 |
QP = 0 | | Scenes |
*
Compression ratio |
| | 1 |
*2.0 | 5.6 | 6.5 | 12.3 | 28.4 | | 3.5 | 4.0 | 8.0 | 16.0 | 32.0 | | 4.2 | 5.9 | 22.4 | | 4.3 | 27.8 | 353.5 | | 2 | 2.0 | 4.5 | 6.0 | 8.8 | 18.1 | | 3.1 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.4 | 4.1 | 15.6 | | 4.8 | 20.6 | 264.5 | | 3 | 2.0 | 4.8 | 6.4 | 13.2 | 34.8 | | 3.3 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.7 | 4.5 | 15.1 | | 4.5 | 21.5 | 258.2 | | 4 | 2.0 | 4.6 | 6.0 | 11.0 | 19.6 | | 3.2 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.4 | 4.1 | 12.0 | | 4.3 | 19.8 | 245.3 | | 5 | 2.0 | 4.2 | 5.9 | 9.9 | 18.7 | | 3.0 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.3 | 3.8 | 12.4 | | 4.5 | 18.4 | 222.4 | | 6 | 2.0 | 4.7 | 6.7 | 8.5 | 12.0 | | 3.2 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.4 | 4.0 | 9.3 | | 3.9 | 18.9 | 222.3 | | 7 | 2.0 | 4.0 | 5.8 | 10.3 | 16.3 | | 3.0 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.1 | 3.6 | 9.2 | | 4.3 | 17.6 | 215.4 | | 8 | 2.0 | 4.2 | 5.8 | 8.1 | 13.7 | | 3.0 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.1 | 3.6 | 9.8 | | 4.3 | 16.9 | 197.8 | | 9 | 2.0 | 3.9 | 5.7 | 8.1 | 10.6 | | 2.9 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.0 | 3.4 | 7.4 | | 4.0 | 16.3 | 199.9 | | 10 | 2.0 | 3.8 | 5.6 | 7.5 | 10.2 | | 2.9 | 4.0 | 8.0 | 16.0 | 32.0 | | 3.0 | 3.2 | 7.1 | | 4.1 | 15.0 | 180.4 | | 11 | 2.0 | 3.6 | 5.7 | 7.5 | 9.3 | | 2.9 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.9 | 3.1 | 6.7 | | 4.0 | 14.9 | 182.2 | | 12 | 2.0 | 3.5 | 5.3 | 7.6 | 9.4 | | 2.8 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.7 | 2.9 | 5.8 | | 4.0 | 14.5 | 174.6 | | 13 | 2.0 | 3.3 | 5.3 | 6.3 | 7.9 | | 2.7 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.7 | 2.8 | 5.6 | | 4.0 | 14.1 | 178.0 | | 14 | 2.0 | 3.5 | 5.3 | 6.4 | 8.2 | | 2.7 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.7 | 2.9 | 5.7 | | 3.9 | 14.1 | 174.4 | | 15 | 2.0 | 3.2 | 5.1 | 6.5 | 8.1 | | 2.7 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.6 | 2.7 | 5.5 | | 3.9 | 13.9 | 175.3 | | 16 | 2.0 | 3.5 | 5.6 | 7.4 | 8.9 | | 3.0 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.7 | 2.9 | 5.6 | | 3.9 | 14.3 | 170.8 | | 17 | 2.0 | 3.4 | 5.4 | 7.0 | 8.2 | | 2.9 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.6 | 2.7 | 5.0 | | 3.7 | 13.6 | 165.6 | | 18 | 2.0 | 3.5 | 5.5 | 7.6 | 9.0 | | 2.9 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.5 | 2.7 | 4.8 | | 3.5 | 13.2 | 156.0 | | 19 | 2.0 | 3.2 | 4.9 | 6.6 | 7.9 | | 2.6 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.3 | 2.5 | 4.3 | | 3.5 | 12.6 | 151.0 | | 20 | 2.0 | 2.3 | 3.6 | 4.6 | 5.3 | | 2.2 | 4.0 | 8.0 | 16.0 | 32.0 | | 1.8 | 1.9 | 2.8 | | 3.5 | 11.5 | 149.8 |
| |
**Average | 2.0 | 3.6 | 5.4 | 7.6 | 10.1 | | 2.9 | 4.0 | 8.0 | 16.0 | 32.0 | | 2.8 | 3.1 | 6.1 | | 4.0 | 15.0 | 185.5 |
| | Scenes |
*PSNR (dB) |
| | 1 |
*41.0 | 58.9 | 49.6 | 45.6 | 43.4 | | 58.9 | 55.3 | 49.5 | 45.8 | 45.3 | | 58.9 | 55.5 | 52.0 | | 56.0 | 45.2 | 37.4 | | 2 | 36.2 | 58.9 | 49.5 | 45.5 | 43.5 | | 58.9 | 52.2 | 46.9 | 44.5 | 43.5 | | 58.9 | 55.3 | 50.9 | | 52.3 | 42.4 | 36.0 | | 3 | 39.3 | 58.9 | 49.6 | 45.8 | 44.1 | | 58.9 | 53.5 | 48.7 | 46.1 | 45.2 | | 58.9 | 55.3 | 51.2 | | 53.5 | 41.9 | 33.9 | | 4 | 39.4 | 58.9 | 49.5 | 45.5 | 43.6 | | 58.9 | 53.0 | 47.8 | 45.1 | 43.8 | | 58.9 | 55.3 | 51.0 | | 52.3 | 40.7 | 33.6 | | 5 | 36.0 | 58.9 | 49.5 | 45.7 | 43.7 | | 58.9 | 52.0 | 47.4 | 45.1 | 43.8 | | 58.9 | 55.2 | 50.7 | | 51.9 | 40.4 | 33.0 | | 6 | 34.3 | 58.9 | 49.8 | 45.7 | 42.3 | | 58.9 | 52.9 | 48.3 | 42.6 | 41.2 | | 58.9 | 55.6 | 51.2 | | 52.6 | 37.5 | 30.5 | | 7 | 37.2 | 58.9 | 49.5 | 45.6 | 43.6 | | 58.9 | 52.0 | 47.4 | 45.0 | 43.1 | | 58.9 | 55.3 | 50.7 | | 51.3 | 38.3 | 30.9 | | 8 | 36.9 | 58.9 | 49.5 | 45.4 | 43.1 | | 58.9 | 51.7 | 46.3 | 44.2 | 42.7 | | 58.9 | 55.3 | 50.8 | | 52.0 | 38.4 | 30.8 | | 9 | 37.1 | 58.9 | 49.4 | 45.3 | 42.9 | | 58.9 | 51.6 | 46.1 | 44.1 | 42.6 | | 58.9 | 55.3 | 50.5 | | 51.1 | 37.5 | 30.8 | | 10 | 34.8 | 58.9 | 49.4 | 45.3 | 42.9 | | 58.9 | 51.8 | 47.1 | 45.3 | 43.7 | | 58.9 | 55.2 | 50.3 | | 51.4 | 39.3 | 32.0 | | 11 | 35.0 | 58.9 | 49.4 | 45.4 | 42.9 | | 58.9 | 51.7 | 47.2 | 45.3 | 43.3 | | 58.9 | 55.2 | 50.2 | | 51.0 | 39.0 | 31.5 | | 12 | 34.3 | 58.9 | 49.4 | 45.4 | 42.9 | | 58.9 | 51.1 | 46.3 | 44.3 | 42.1 | | 58.9 | 55.2 | 50.3 | | 50.0 | 35.3 | 27.0 | | 13 | 35.7 | 58.9 | 49.4 | 45.2 | 42.6 | | 58.9 | 50.6 | 45.9 | 43.7 | 41.7 | | 58.9 | 55.2 | 50.0 | | 49.7 | 38.3 | 31.8 | | 14 | 36.6 | 58.9 | 49.4 | 45.1 | 42.6 | | 58.9 | 50.8 | 45.5 | 43.4 | 41.4 | | 58.9 | 55.2 | 50.2 | | 49.6 | 35.2 | 28.3 | | 15 | 36.1 | 58.9 | 49.4 | 45.2 | 42.6 | | 58.9 | 50.1 | 45.6 | 43.2 | 40.6 | | 58.9 | 55.2 | 50.0 | | 49.1 | 36.2 | 29.2 | | 16 | 33.2 | 58.9 | 49.5 | 45.4 | 42.8 | | 58.9 | 51.9 | 47.1 | 44.8 | 42.2 | | 58.9 | 55.4 | 50.3 | | 50.0 | 34.2 | 25.5 | | 17 | 32.6 | 58.9 | 49.6 | 45.4 | 42.7 | | 58.9 | 51.3 | 46.6 | 44.1 | 40.7 | | 58.9 | 55.4 | 50.3 | | 49.5 | 32.6 | 24.1 | | 18 | 32.0 | 58.9 | 49.6 | 45.6 | 42.9 | | 58.9 | 51.3 | 46.5 | 43.7 | 40.0 | | 58.9 | 55.5 | 50.5 | | 49.6 | 30.6 | 21.8 | | 19 | 33.1 | 58.9 | 49.5 | 45.3 | 42.7 | | 58.9 | 50.2 | 45.4 | 42.7 | 38.9 | | 58.9 | 55.3 | 50.2 | | 48.6 | 30.1 | 21.3 | | 20 | 31.2 | 58.9 | 49.5 | 45.1 | 42.2 | | 58.9 | 45.8 | 41.0 | 36.6 | 32.1 | | 58.9 | 55.3 | 49.6 | | 42.7 | 27.1 | 20.6 |
| |
**
Average | 34.7 | 58.9 | 49.5 | 45.4 | 42.9 | | 58.9 | 50.9 | 46.1 | 43.2 | 40.2 | | 58.9 | 55.3 | 50.4 | | 49.5 | 34.2 | 26.4 |
|
|
*Compression ratio and PSNR values are averaged over five bands of each scene.
**Average values are calculated over all images, except scenes 1 and 2. Due to the small set of scenes and the high compression ratio on scenes 1 and 2, their values were not considered to avoid distorted average values for some algorithms.
|