Stoyanova, Magdelena, and Lilia Pavlova. “Edge Detection Algorithms in Mapping the Condition and Historic Phases of the Last Judgment Mosaics in Torcello/Venice”. Digital Presentation and Preservation of Cultural and Scientific Heritage 9 (September 13, 2019): 163–176. Accessed May 4, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2019.9.14.