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Exhibit Guide: Near Eastern Seals Collected by Henri Hyvernat (1858-1941)

Authentic or Fake?


Photography, Images, and Reverse Images

Digital images of the Catholic University seals were made on a flatbed scanner with capture resolution of 600 pixels per inch. They were saved as uncompressed tagged image file form tiff files for archival files. Images also were saved as compressed jpeg files. These digital images capture one view of a three-dimensional object. Very high resolution images and the use of Polynomial Texture Mapping, a photographic technique developed by Hewlett Packard, can provide more information to scholars.

Origin, Development, and Use of Ancient Seals

How Were Ancient Seals Made?