For the ledger books digitized by PILA, each page is scanned with a color target and the comparison strip is used to calibrate the colors in the processing of the images for inclusion in the database for the web site. Although it is true that the colors available commercially are limited in theory, no one seems to have done comprehensive research about the production end, let alone what would have been available to Plians artists in trading posts or military stores.
Plains Indian Ledger Art Project
Department of Ethnic Studies, UCSD
Ross Frank, Associate Professor
9500 Gilman, Dept. 0522
La Jolla, CA 92093-0522