IMAGE ANALYSIS AND TREATMENT FOR THE DETECTION OF PETROGLYPHS AND THEIR SUPERIMPOSITIONS: REDISCOVERING ROCK ART IN THE BALOS RAVINE, GRAN CANARIA ISLAND. RAR [Internet]. 2023 Nov. 17 [cited 2025 May 9];40(2):121-30. Available from: https://rockartresearch.com/index.php/rock/article/view/263