Rock Art Research

Vol. 40 No. 2 (2023)
Published : Nov 17, 2023

IMAGE ANALYSIS AND TREATMENT FOR THE DETECTION OF PETROGLYPHS AND THEIR SUPERIMPOSITIONS: REDISCOVERING ROCK ART IN THE BALOS RAVINE, GRAN CANARIA ISLAND

Pedro Javier Sosa-Alonso (1)

(1) ACIISI, University of Las Palmas de Gran Canaria, Spain
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Abstract

This paper presents the methodology we are applying to rediscover the petroglyphs of the most well-known and studied open-air rock art site on Gran Canaria Island, the Balos Ravine. For this, we are using image analysis with DStretch, which works very well for pigments but not petroglyphs. However, in this case, the use that we give to DStretch is somewhat different; following a series of guidelines and with the help of other tools such as Photoshop, we are obtaining amazing results.