Table 5.
Exploiting application of prediction to an unmodified image or to the LL subband of the DWT-transformed image.
| Transform Variant/Scheme | Time | Images | ||
|---|---|---|---|---|
| Rel. | Photo | No-Photo | ||
| 1 | ∆rNO-DWT+PredMED | 0.94 | −0.19% | −31.49% |
| 2 | ∆rDWT+PredMED_LL | 1.00 | −0.24% | −0.82% |
| 3 | ∆rH0_sel(NO-DWT+PredMED; DWT+PredMED_LL) | 1.02 | −1.17% | −30.93% |
| 4 | ∆rH0_sel(NO-DWT+PredMED; SS-DWT+Pred, H0_RH(2,1,2)) | 1.21 | −1.62% | −31.39% |
| 5 | ∆rH0_sel(NO-DWT+PredMED; SS-DWT+Pred, H0_RH(2,1,5)) | 1.36 | −1.67% | −31.43% |
| 6 | ∆rmin_bpp(NO-DWT+PredMED; DWT+PredMED_LL) | 1.66 | −1.38% | −31.59% |
| 7 | ∆rmin_bpp(NO-DWT+PredMED; SS-DWT+Pred, H0_RH(2,1,2)) | 2.04 | −1.67% | −31.68% |
| 8 | ∆rmin_bpp(NO-DWT+PredMED; SS-DWT+Pred, H0_RH(2,1,5)) | 2.31 | −1.76% | −31.92% |
| 9 | ∆rmin_bpp(NO-DWT+PredMED; SS-DWT+Pred, RH(2,1,5)) | 5.11 | −1.98% | −32.07% |
| 10 | ∆rmin_bpp(NO-DWT+PredMED; SS-DWT+Pred, NH(2,1,5)) | 6.86 | −2.05% | −32.08% |
Note: Symbols and units of measurement—see Table 2 note.