Exposing Digital Forgeries Through Specular Highlights on the Eye

نویسندگان

  • Micah K. Johnson
  • Hany Farid
چکیده

When creating a digital composite of two people, it is difficult to exactly match the lighting conditions under which each individual was originally photographed. In many situations, the light source in a scene gives rise to a specular highlight on the eyes. We show how the direction to a light source can be estimated from this highlight. Inconsistencies in lighting across an image are then used to reveal traces of digital tampering.

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تاریخ انتشار 2007