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Proceedings Paper

Reflectance And Optical Contrast Of Old Manuscripts: Wavelength Dependence
Author(s): Julian Bescos; Francisco Jaque; Luis Montoto
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Paper Abstract

The reflectance of Spanish manuscripts (paper and ink) dating from the XV to XIX centuries has been studied in the spectral range 350-1000 nm, specially when poor definition and/or manuscript degradation are present. The results have been applied to optimize the readability of the corresponding digital images of manuscript by choosing appropriately the spectral distribution of the source and the spectral sensitivity of the detector in a given digitizing device. For those manuscripts with severe degradation, the method gives enhanced original digital images that could be further processed resulting in optimal final images.

Paper Details

Date Published: 9 February 1989
PDF: 5 pages
Proc. SPIE 1028, Scanning Imaging, (9 February 1989); doi: 10.1117/12.950354
Show Author Affiliations
Julian Bescos, Fundacion Ramon Areces (Spain)
Francisco Jaque, Universidad Autonoma de Madrid (Spain)
Luis Montoto, IBM, Scientific Center (Spain)

Published in SPIE Proceedings Vol. 1028:
Scanning Imaging
Tony Wilson, Editor(s)

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