Digital Image Enhancement

The "Eureka!" image, from Hueco Tanks, Texas in 1999. This was the real beginning of digital image enhancement in rock art studies.

Another surprise from Hueco Tanks.

The jaguar, a third example from Hueco Tanks.


An example of "maybe there is something here" from northeastern Arizona.

A Barrier Canyon Style, Utah, image provided by David Sucec. Note the small quadruped.

For more information about image enhancement, using Adobe Photoshop and decorrelation stretch, see:


Mark, R. K., and Billo, E., 2002, Application of Digital Image Enhancement in Rock Art Recording, American Indian Rock Art V. 28, 121-128. (PDF)


Mark, R., and Billo, E., 2006, Computer-Assisted Documentation of Rock Art: CSIC Thematic Network on Cultural Heritage, Coalition Electronic Newsletter, no. 11, p. 10-14. (PDF).



RCS: Computer science in the service of rock art research, protection, and education.