Applications of color holography in the investigation of handwritten cultural historic sources

Guenther K.G. Wernicke; Hartmut Gruber; Nazif Demoli; Mathias Senoner; Gert von Bally; Frank Dreesen; Axel Roshop

doi:10.1117/12.301462

1 February 1998 Applications of color holography in the investigation of handwritten cultural historic sources

Guenther K.G. Wernicke, Hartmut Gruber, Nazif Demoli, Mathias Senoner, Gert von Bally, Frank Dreesen, Axel Roshop

Proceedings Volume 3358, Sixth International Symposium on Display Holography; (1998) https://doi.org/10.1117/12.301462
Event: Sixth International Symposium on Display Holography, 1997, Lake Forest, IL, United States

Abstract

New holographic materials with high resolution broaden the possibilities of applications of color holography. The color rendering of two of these materials, the Russian silver halide material PFG 03 and DuPonts photopolymer, was investigated and compared. This was done by using the CIELAB color system, taken into account luminance, hue, and chromaticity of a holographic image. Further on results in diffraction efficiency, image resolution, and signal to noise ratio are presented. Taking a good quality color hologram of cultural historic objects is often only the first step of an investigation. Measurements of the microscopic structure or the correlation of holographically stored handwritten signs is sometimes necessary. In the second part of the paper measurements are presented on holographic and coherent optical filtering of cuneiform signs. Results of measurements with originals and holograms are compared.

Citation Download Citation

Guenther K.G. Wernicke, Hartmut Gruber, Nazif Demoli, Mathias Senoner, Gert von Bally, Frank Dreesen, and Axel Roshop "Applications of color holography in the investigation of handwritten cultural historic sources", Proc. SPIE 3358, Sixth International Symposium on Display Holography, (1 February 1998); https://doi.org/10.1117/12.301462

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