Pattern recognition after image processing of low-contrast images, the case of the Shroud of Turin

  • Authors:

  • Paolo Di Lazzaro;Daniele Murra;Barrie Schwortz

  • Affiliations:

  • ENEA Research Center of Frascati, Department Applications of Radiation, P.O. Box 65, 00044 Frascati, Italy;ENEA Research Center of Frascati, Department Applications of Radiation, P.O. Box 65, 00044 Frascati, Italy;STERA Inc., 1094 Highland Meadows, CO 80816-8818, USA

  • Venue:
  • Pattern Recognition
  • Year:
  • 2013

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Abstract

We discuss the potentially misleading effect of software techniques for elaborating low-contrast images. In particular, we present the example of the stains embedded into one of the most studied archeological objects in history, the Shroud of Turin. We show for the first time that image processing of both old and recent photographs of the Shroud may lead some researchers to perceive inscriptions and patterns that do not actually exist, confirming that there is a narrow boundary between image enhancement and manipulation.