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FADGI & Metamorfoze: The Gold Standard of Preservation Standards

February 2, 2018

and Metamorfoze are two sets of preservation standards developed within the last decade that provide comprehensive numerical analysis of accuracy and quality of digitized image output from a wide array of imaging devices. FADGI (Federal Agencies Digitization Initiative) was first developed in the United States in 2007 as a collaboration between federal agencies to ensure best practices and superior quality for the digitization of still images and audio/visual content. Metamorfoze was developed through a partnership with the National Library of the Netherlands and the National Archives as a series of digital preservation guidelines for two dimensional materials and now is used across Europe and elsewhere in the world.

Both FADGI and Metamorfoze use a tiered rating system to evaluate the quality of digitized content. FADGI uses a rating of 1-4 stars, with one star being the lowest quality and 4 representing the highest (preservation level) quality. Metamorfoze uses three separate categories that correspond to FADGI's 4,3 and 2 star ratings, respectively: Metamorfoze (the highest, or preservation quality), Metamorfoze Light, and Metamorfoze Extra-Light. 
Using an integrated method of physical imaging targets and an official, computer-based analysis software known as Goldenthread, FADGI captures and analyses a wide array of color, light resolution and detail metrics at the device and/or object level and separates them into several distinct categories. These categories measure lighting and luminance uniformity, RGB color accuracy, white balance, tone response, spatial frequency response, image noise, color registration, and sampling frequency. From images of an industry accepted test target captured from a specific imaging device, Goldenthread plots the data as a series of charts and graphs which then compares the results alongside a baseline set of industry accepted values in order to determine a final rating.

FADGI ratings can be used to determine a specific digitized output's suitability for display and/or preservation. A four star rating signifies stringent, preservation-level content; a superior comparison of color, tone and detail accuracy between the original, still image and its digitized counterpart. A three star rating signifies fairly accurate digitized content that would be suitable for full color re-printing through most  commercial printers as well as high-success optical character recognition (OCR) and searchability. A two star rating may indicate an image suitable for average OCR accuracy and as a means of reasonably accessible online access. A one star rating reflects subpar image quality that would be strictly for direct reference to the original, physical item or for limited, textual purposes only.

While primarily as a means of assessing overall performance of both linear and area array imaging technologies as well as quantifying consistent image quality that  meets baseline parameters and other technical specifications, FADGI standards can also be used to better configure and adjust variable digital image capture devices to improve overall image quality. Settings in regards to lighting, color space, lens type, focus, shutter speed, exposure time, ISO speed, aperture setting, and white balance of camera sensors and planetary imaging devices can be objectively analyzed and fine-tuned to optimize capture content as well as streamlining the pre- and post-capture processes involved in the digitization workflow.

Kirtas To Attend ACRL Conference March 22-24, 2017

March 3, 2017

Spring fever is in the air and new digital imaging projects are in full bloom. What's more, high quality digitization has never been so streamlined, efficient and affordable! Come visit us at this year's ACRL convention in Baltimore, Maryland. Stop by booth 1504 to view our exciting line of manual, semi-automated and automated digitization products, including our KABIS II+ which offers 23 megapixel, high resolution digital images at speeds of over 1,700 pages per hour! 


Where There's A Will There's A Way-- Digitization at The University of Mary Washington

November 9, 2016

The University of Mary Washington's Digital Archiving Lab in Fredericksburg, Virginia is currently
Grace 5the Book2Net Cobra overhead scanner to help convert the Simpson Library’s rare and unique archival materials into digital formats.

The Cobra utilizes two high-resolution area sensors in combination with high quality optics, safe handling and LED illumination to enable high-resolution scanning of fragile bound books and documents of various sizes.

Ristech/Kirtas originally installed the digitization system at the university during the fall semester of 2014.

Since that time, the Cobra has been involved in several important preservation initiatives.
Over this past summer, the lab worked in collaboration with the Washington Heritage Museums and the Fredericksburg Circuit Court Archives to digitize the original will and testament of George Washington's mother, Mary Ball Washington.

The digitization will enable staff and patrons access to high-quality digital representations of the will, which can then be reproduced electronically for exhibits without repeated handling of the extremely fragile original document.

UMW's other digitization initiatives can be viewed at