# Last edited on 2004-10-26 04:17:23 by stolfi # Analysis of a mosaic of blank vellum patches # # Analysis as an additive mixture of extrapolated Vellum (UltraVellum), # extrapolated Dirt (InfraDirt), and slightly dark Shadow (SoftShadow) # to better visualize the fit. Best-fit simplex (many slight outliers). -layer img-bg.ppm -color 216 215 216 / 255 -map 0.90 0.90 0.90 # UltraVellum -layer img-ca.ppm -color 208 191 160 / 255 -map 0.90 0.10 0.10 # InfraDirt -layer img-cb.ppm -color 115 210 125 / 255 -map 0.10 0.90 0.10 # DrabGreen -layer img-sh.ppm -color 167 166 167 / 255 -map 0.10 0.10 0.90 # SoftShadow -exceptions img-ex.ppm -stretched img-xx.ppm -bg 000 000 000 / 255