For secord's results: Measurement change with different number

Tone:
            40k         |30k         |20k         |10k         |5k
baby:    21.8400  |22.2324  |23.0338  |24.4905  |24.0452
balloon: 18.5688 |19.2340  | 20.4272 |24.0532  |25.8144
woman: 21.4464 |22.2887  |24.6317  |28.7024  |26.9925
                           |               |              |               |
MSSIM:
baby:     0.1182 |0.1057    | 0.0969    |0.0930  | 0.0947
balloon: 0.5620 |0.5403    | 0.5225    | 0.5045 | 0.4916   
woman: 0.1383 |0.1146    | 0.0964    |0.0777  | 0.0711