Spatiogram features to characterize pearls in paintings

Ljiljana Platisa, Bruno Cornelis, Tijana Ruzic, Alexandra Pizurica, Ann Dooms, Maximiliaan Martens, Marc De Mey, Ingrid Daubechies

Research output: Chapter in Book/Report/Conference proceedingConference paper

6 Citations (Scopus)


Objective characterization of jewels in paintings, especially pearls, has been a long lasting challenge for art historians. The way an artist painted pearls reflects his ability to observing nature and his knowledge of contemporary optical theory. Moreover, the painterly execution may also be considered as an individual characteristic useful in distinguishing hands. In this work, we propose a set of image analysis techniques to analyze and measure spatial characteristics of the digital images of pearls, all relying on the so called spatiogram image representation. Our experimental results demonstrate good correlation between the new metrics and the visually observed image features, and also capture the degree of realism of the visual appearance in the painting. In that sense, these results set the basis in creating a practical tool for art historical attribution and give strong motivation for further investigations in this direction.
Original languageEnglish
Title of host publication18th IEEE International Conference on Image Processing (ICIP 2011), Brussels, Belgium
Publication statusPublished - 2011
EventUnknown -
Duration: 1 Jan 2011 → …


Period1/01/11 → …


  • Ghent Altarpiece
  • image analysis
  • histograms
  • spatiograms
  • content similarity


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