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2016
Journal article
Reframing Magna Carta – Comprehensive Planning and Pragmatic Outcomes
In preparation for the British Library’s exhibition to mark 800 years of Magna Carta, the Library’s copies of the charter, and three related documents, were reframed. There were several requirements: minimal intervention; allow re-treatability; fully show rectos and text; present the charters as documents rather than artworks. Comprehensive risk assessments...Garside, Paul ; Rogerson, Cordelia ; Moorhead, Gavin ; Matsuoka, Kumiko ; Duffy, Christina
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2022
Journal article
Under the Impression: Multispectral Imaging of Lord Frederick Campbell Charter XXI 5
Lord Frederick Campbell Charter 5 is the only surviving English document that still has an authentic, legible, pre-Conquest seal attached to it. The text purports to be a writ of Edward the Confessor (1003x5–1066) granting a slew of rights to Christ Church Cathedral, Canterbury. We examined the writ using multispectral...Hudson, Alison ; Duffy, Christina
multispectral imaging, digital humanities, conservation, seals, early medieval history, writs, and Norman Conquest
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2020
Journal article
Understanding multispectral imaging of cultural heritage: Determining best practice in MSI analysis of historical artefacts
Although multispectral imaging (MSI) of cultural heritage, such as manuscripts, documents and artwork, is becoming more popular, a variety of approaches are taken and methods are often inconsistently documented. Furthermore, no overview of the process of MSI capture and analysis with current technology has previously been published. This research was...Jones, Cerys ; Duffy, Christina ; Gibson, Adam ; Terras, Melissa
workflow, best practice, digitization, cultural heritage imaging, advanced imaging analysis, and multispectral imaging
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2014
Journal article
The Discovery of a Watermark on the St Cuthbert Gospel using Colour Space Analysis
Watermarks on paper attached to substrates through which light cannot pass can be observed by converting a high resolution digital image of the region into a suite of colour spaces. An image is comprised of a variety of layers or textures which can be separated. This allows pixels of interest...Duffy, Christina
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2018
Conference paper (published)
Multi-spectral Imaging at the British Library
The British Library is the national library of the United Kingdom and holds over 150 million items with an additional three million new items added each year. The 625 km of shelving contains manuscripts, maps, newspapers, magazines, prints, drawings, music scores and patents. The fundamental purpose of the Library is...Duffy, Christina
multi-spectral imaging, text-recovery, iron gall ink, digital, digitization, reagent, data, library, fire-damage, imaging, and erasure