@article {9625,
	title = {Digitizing the Past: A New Procedure for Faded Rock Painting Photography},
	journal = {Canadian Journal of Archaeology/Journal canadien d{\textquoteright}arch{\'e}ologie},
	volume = {26},
	year = {2002},
	pages = {025-040},
	abstract = {<p>Faded and weathered pictographs have historically been difficult to record using standard documentary photography. Natural lighting produces inconsistent color and harsh lighting conditions that prevent color photographic films from capturing faint pigment colors. Films are also problematic, since most color films are comprised of unstable organic dyes that fade over time. The paper discusses the authors\&$\#$39; multiple-step photographic and computer enhancement procedure to record faded, pigmented artifacts, such as pictographs, pottery, and dyed fabric. Cross-polarized lighting selectively eliminates surface reflections, but retains internal reflections from color pigments, which enhances their capture by film-based or direct-digital cameras. Selective digital enhancement substantially increases the brightness and color saturation of cross polarized photographs. This kind of specialized photography complements other, equally important recording techniques in the quest for comprehensive documentation of faded pictographs.</p>},
	author = {James W. Henderson}
}
