# A Mixed Method with Effective Color Reduction
## 5 Conclusions
\begin{table}
\begin{tabular}{l r r r r r r r r r r r r r} \hline \hline  & \multicolumn{3}{c}{**32 Colors**} & \multicolumn{3}{c}{**64 Colors**} & \multicolumn{3}{c}{**128 Colors**} & \multicolumn{3}{c}{**256 Colors**} \\ \cline{2-13}  & \(\mathit{MSE}\) & \(\mathit{T}\) & \(\mathit{MSE}\) & \(\mathit{T}\) & \(\mathit{MSE}\) & \(\mathit{T}\) & \(\mathit{MSE}\) & \(\mathit{T}\) & \(\mathit{MSE}\) & \(\mathit{T}\) \\ \hline Lenna & 138.44 & 173 & 82.44 & 219 & 53.04 & 276 & 35.28 & 355 \\ Peppers & 311.66 & 165 & 173.75 & 214 & 106.85 & 272 & 68.72 & 344 \\ Plane & 83.12 & 130 & 46.22 & 186 & 28.06 & 238 & 18.42 & 320 \\ Mandrill & 441.30 & 198 & 286.93 & 236 & 183.51 & 296 & 117.85 & 377 \\ Blond & 111.28 & 172 & 63.07 & 215 & 38.46 & 280 & 23.65 & 357 \\ Lake & 245.65 & 167 & 162.89 & 213 & 107.00 & 273 & 68.36 & 355 \\ Hydrant & 210.09 & 163 & 125.54 & 219 & 76.30 & 269 & 45.79 & 341 \\ EPSZ & 132.19 & 170 & 72.67 & 219 & 43.70 & 274 & 27.18 & 353 \\ Machine & 86.83 & 175 & 49.03 & 207 & 29.75 & 258 & 18.35 & 315 \\ Text & 43.02 & 162 & 23.22 & 208 & 14.21 & 257 & 9.24 & 347 \\ Sign & 73.66 & 160 & 39.97 & 197 & 22.86 & 249 & 13.41 & 308 \\ Bikes & 130.97 & 167 & 72.82 & 206 & 39.57 & 258 & 21.52 & 342 \\ Sailboats & 86.96 & 245 & 47.36 & 282 & 27.39 & 387 & 14.99 & 503 \\ Motorcycles & 276.14 & 260 & 151.98 & 335 & 83.79 & 420 & 49.37 & 552 \\ Lady & 144.81 & 255 & 79.32 & 310 & 44.57 & 388 & 24.55 & 504 \\ Caps & 217.36 & 217 & 112.00 & 275 & 55.43 & 354 & 28.86 & 447 \\ Parrots & 315.58 & 234 & 163.83 & 292 & 94.54 & 353 & 54.36 & 466 \\ Girl & 151.51 & 238 & 89.28 & 293 & 52.19 & 367 & 30.06 & 488 \\ Landscape & 129.18 & 197 & 66.61 & 238 & 36.48 & 316 & 22.18 & 416 \\ Headbands & 149.52 & 174 & 84.86 & 225 & 51.30 & 280 & 31.28 & 354 \\ Dessert & 152.16 & 182 & 85.29 & 225 & 48.50 & 272 & 29.42 & 364 \\ Snowman & 163.63 & 184 & 87.54 & 242 & 46.97 & 296 & 27.48 & 385 \\ Cathechras & 72.42 & 157 & 38.57 & 196 & 22.43 & 241 & 13.29 & 308 \\ Beach & 179.49 & 166 & 93.22 & 204 & 52.30 & 251 & 31.89 & 321 \\ \hline \(\mathit{AVE}\). & 168.62 & 188 & 95.77 & 236 & 56.63 & 297 & 34.40 & 384 \\ \hline \hline \end{tabular}
\end{table} 
Table 13: MSE and execution time (milliseconds) of BS (\(\mathit{AVE}\). : average values for all the images). \begin{table}
\begin{tabular}{l r r r r r r r r r r r r r} \hline \hline  & \multicolumn{3}{c}{**32 Colors**} & \multicolumn{3}{c}{**64 Colors**} & \multicolumn{3}{c}{**128 Colors**} & \multicolumn{3}{c}{**256 Colors**} \\ \cline{2-13}  & \(\mathit{min}\) & \(\mathit{av}\) & \(\mathit{dev}\) & \(\mathit{T}\) & \(\mathit{min}\) & \(\mathit{av}\) & \(\mathit{dev}\) & \(\mathit{T}\) & \(\mathit{min}\) & \(\mathit{av}\) & \(\mathit{dev}\) & \(\mathit{T}\) \\ \hline Len. & 137.66 & 157.21 & 21.4 1430 & 78.87 & 94.83 & 13.3 2294 & 50.29 & 63.45 & 21.9 3791 & 32.08 & 49.67 & 29.5 & 6225 \\ Pep. & 285.75 & 350.98 & 84.9 1529 & 156.80 & 177.57 & 17.0 2627 & 94.68 & 118.78 & 32.7 4325 & 60.77 & 93.60 & 48.8 & 6873 \\ Pla. & 97.59 & 113.06 & 16.1 1493 & 45.38 & 62.34 & 15.9 2551 & 26.63 & 43.17 & 17.5 3997 & 17.10 & 33.28 & 22.2 & 6113 \\ Man. & 399.65 & 1885.24 & 3568.3 & 1414 & 259.82 & 1768.84 & 3625.4 & 2333 & 167.66 & 1682.64 & 3667.6 & 3482 & 111.07 & 1638.11 & 3689.5 & 6428 \\ Blo. & 94.70 & 127.46 & 32.55 & 1559.92 & 59.20 & 71.70 & 16.9 2641 & 36.79 & 41.59 & 14.23 & 4331.0 & 12.06 & 36.08 & 20.2 & 6656 \\ Lake & 221.71 & 336.26 & 17.8 1531 & 152.24 & 165.55 & 11.7 2625 & 95.28 & 111.46 & 23.5 4362 & 62.13 & 83.26 & 38.1 & 7131 \\ Hyd. & 205.22 & 248.33 & 39.4 1394 & 115.76 & 162.45 & 42.1 2355 & 27.48 & 100.95 & 31.5 3772 & 41.55 & 74.20 & 41.6 & 7146 \\ EPS. & 146.94 & 183.01 & 37.4 1352 & 78.91 & 111.61 & 68.5 2186 & 41.55 & 82.30 & 83.0 & 3582 & 25.07 & 69.35 & 90.0 & 6446 \\ Mac. & 95.69 & 183.59 & 114.3 1371 & 50.70 & 84.59 & 51.1 2258 & 30.35 & 60.82 & 61.3 3687 & 17.25 & 50.96 & 66.4 & 6284 \\ Text & 36.94 & 58.55 & 34.46 & 1380 & 21.43 & 28.37 & 8.28 & 168.13 & 13.0 & 20.38 & 10.5 & 339.0 & 8.1 & 17.98 & 12