Table 3.
MAE comparison of the color quantization methods.
| K | Lenna | Parrots | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8 | 16 | 32 | 64 | 128 | 256 | 8 | 16 | 32 | 64 | 128 | 256 | |
| POP | 41.5 | 36.6 | 22.0 | 16.1 | 12.7 | 11.9 | 101.6 | 73.5 | 58.8 | 22.5 | 16.5 | 13.6 |
| MC | 31.0 | 25.1 | 19.4 | 15.1 | 11.5 | 8.6 | 64.8 | 52.1 | 36.9 | 25.1 | 17.8 | 12.8 |
| OCT | 35.9 | 32.8 | 23.3 | 15.5 | 12.9 | 9.6 | 53.9 | 38.2 | 28.6 | 20.3 | 16.3 | 12.6 |
| KM | 31.1 | 30.1 | 24.8 | 19.7 | 13.3 | 12.0 | 44.7 | 31.0 | 26.6 | 20.2 | 16.6 | 12.9 |
| ART2 | 31.1 | 22.1 | 18.5 | 12.4 | 10.3 | 8.5 | 43.8 | 35.3 | 25.9 | 18.3 | 14.2 | 11.3 |
| SOM | 27.4 | 19.5 | 14.0 | 10.9 | 8.6 | 6.9 | 42.4 | 28.4 | 20.3 | 14.9 | 11.5 | 8.7 |
| PM | 27.1 | 19.8 | 14.9 | 10.9 | 8.8 | 7.2 | 41.0 | 27.8 | 20.1 | 15.2 | 11.8 | 9.1 |
|
| ||||||||||||
| K | Mona Lisa | House | ||||||||||
| 8 | 16 | 32 | 64 | 128 | 256 | 8 | 16 | 32 | 64 | 128 | 256 | |
|
| ||||||||||||
| POP | 40.4 | 28.1 | 20.4 | 14.2 | 12.9 | 12.5 | 62.6 | 52.2 | 39.1 | 29.7 | 21.5 | 15.8 |
| MC | 25.2 | 20.3 | 16.1 | 12.5 | 9.4 | 7.4 | 63.6 | 54.9 | 39.6 | 27.5 | 20.2 | 15.9 |
| OCT | 29.7 | 24.8 | 16.3 | 13.4 | 10.4 | 8.9 | 51.4 | 43.3 | 41.0 | 25.9 | 24.8 | 17.6 |
| KM | 30.7 | 23.5 | 18.8 | 14.2 | 13.6 | 11.8 | 43.1 | 30.8 | 25.7 | 22.1 | 18.5 | 16.0 |
| ART2 | 29.2 | 21.8 | 16.3 | 12.3 | 9.5 | 7.6 | 44.1 | 33.4 | 29.3 | 23.6 | 18.8 | 15.3 |
| SOM | 25.9 | 17.6 | 13.3 | 9.7 | 7.3 | 5.6 | 47.3 | 33.2 | 23.7 | 18.5 | 14.8 | 11.8 |
| PM | 24.0 | 16.2 | 12.0 | 9.1 | 7.2 | 5.7 | 42.0 | 30.6 | 23.8 | 18.8 | 14.9 | 12.0 |
|
| ||||||||||||
| K | Mandrill | Venus | ||||||||||
| 8 | 16 | 32 | 64 | 128 | 256 | 8 | 16 | 32 | 64 | 128 | 256 | |
|
| ||||||||||||
| POP | 78.6 | 56.9 | 40.9 | 31.0 | 21.1 | 15.7 | 109.6 | 46.5 | 33.0 | 23.8 | 17.3 | 13.8 |
| MC | 69.3 | 64.6 | 59.0 | 46.2 | 33.8 | 21.6 | 41.8 | 35.7 | 33.3 | 27.5 | 20.3 | 15.1 |
| OCT | 55.3 | 51.3 | 39.0 | 27.2 | 22.0 | 17.9 | 68.6 | 56.3 | 34.9 | 32.0 | 22.9 | 17.8 |
| KM | 46.3 | 34.9 | 30.3 | 22.5 | 18.7 | 16.8 | 43.5 | 34.3 | 25.5 | 20.8 | 17.6 | 14.7 |
| ART2 | 50.7 | 37.3 | 29.2 | 24.8 | 20.0 | 16.3 | 44.6 | 37.4 | 31.2 | 22.3 | 17.9 | 13.7 |
| SOM | 45.3 | 34.0 | 26.1 | 20.5 | 16.4 | 13.1 | 42.5 | 30.3 | 21.9 | 16.9 | 13.4 | 10.7 |
| PM | 45.0 | 34.1 | 26.1 | 20.5 | 16.8 | 13.4 | 40.9 | 28.4 | 21.2 | 16.7 | 13.4 | 10.7 |
|
| ||||||||||||
| K | Bedroom | Scream | ||||||||||
| 8 | 16 | 32 | 64 | 128 | 256 | 8 | 16 | 32 | 64 | 128 | 256 | |
|
| ||||||||||||
| POP | 102.1 | 96.5 | 56.0 | 36.1 | 27.1 | 19.0 | 59.3 | 47.3 | 29.5 | 20.9 | 14.6 | 12.3 |
| MC | 74.0 | 65.8 | 47.4 | 37.8 | 28.4 | 19.9 | 54.5 | 41.0 | 28.1 | 20.5 | 14.2 | 10.4 |
| OCT | 63.8 | 57.7 | 47.9 | 30.6 | 26.9 | 18.1 | 54.6 | 53.2 | 42.1 | 21.9 | 17.4 | 13.0 |
| KM | 53.8 | 40.2 | 33.0 | 25.9 | 21.0 | 17.3 | 33.6 | 27.8 | 24.2 | 21.7 | 15.2 | 13.0 |
| ART2 | 52.6 | 47.5 | 35.6 | 27.8 | 21.7 | 17.7 | 33.0 | 26.3 | 19.8 | 15.3 | 12.5 | 10.3 |
| SOM | 53.8 | 39.2 | 28.4 | 21.8 | 17.2 | 13.6 | 40.5 | 29.3 | 18.0 | 13.6 | 10.6 | 8.5 |
| PM | 51.7 | 37.3 | 28.0 | 21.7 | 17.2 | 13.7 | 33.1 | 23.2 | 17.6 | 13.7 | 10.7 | 8.9 |
|
| ||||||||||||
| K | Old man | Dragonfly | ||||||||||
| 8 | 16 | 32 | 64 | 128 | 256 | 8 | 16 | 32 | 64 | 128 | 256 | |
|
| ||||||||||||
| POP | 71.3 | 42.6 | 21.6 | 13.5 | 12.9 | 12.9 | 39.0 | 25.8 | 17.4 | 14.8 | 12.8 | 12.0 |
| MC | 27.9 | 19.0 | 15.2 | 11.1 | 8.8 | 6.8 | 26.9 | 22.7 | 18.1 | 13.8 | 10.9 | 8.3 |
| OCT | 51.6 | 40.2 | 17.7 | 12.0 | 9.4 | 7.0 | 40.2 | 26.9 | 22.4 | 14.3 | 13.6 | 9.0 |
| KM | 26.8 | 21.2 | 18.6 | 15.8 | 14.3 | 12.2 | 26.5 | 20.5 | 20.9 | 18.3 | 14.0 | 13.5 |
| ART2 | 38.4 | 27.9 | 20.9 | 14.6 | 11.4 | 8.5 | 26.7 | 23.2 | 18.1 | 14.7 | 11.6 | 9.3 |
| SOM | 22.5 | 15.9 | 11.4 | 8.7 | 6.5 | 5.2 | 21.4 | 16.2 | 12.7 | 10.0 | 8.9 | 6.2 |
| PM | 22.3 | 15.7 | 11.8 | 8.7 | 6.8 | 5.5 | 21.1 | 16.9 | 13.4 | 10.6 | 9.6 | 6.9 |