Reflectance And Optical Contrast Of Old Manuscripts: Wavelength Dependence

Julian Bescos; Francisco Jaque; Luis Montoto

doi:10.1117/12.950354

9 February 1989 Reflectance And Optical Contrast Of Old Manuscripts: Wavelength Dependence

Julian Bescos, Francisco Jaque, Luis Montoto

Proceedings Volume 1028, Scanning Imaging; (1989) https://doi.org/10.1117/12.950354
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

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.

Citation Download Citation

Julian Bescos, Francisco Jaque, and Luis Montoto "Reflectance And Optical Contrast Of Old Manuscripts: Wavelength Dependence", Proc. SPIE 1028, Scanning Imaging, (9 February 1989); https://doi.org/10.1117/12.950354

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available