Still Image Digitization Sub-Groups

File-Format

The intent of this sub-group is to develop guidelines for file formats and associated characteristics or properties for the various objectives and uses for digitized content. The guidelines will be developed through an evidence-based methodology. The recommendations from this group will also result in candidate language that will update existing FADGI Still Image documentation, including: Content Categories and Objectives, and Glossary.

Current Projects/Reference Material

• Scope and Objectives

Embedded Metadata

Embedded metadata plays an important role in the management, use, and sustainability of digital assets, supporting disaster recovery by making digital files self-documenting.  Descriptive metadata may be embedded or linked by means of an identifier, and the availability of descriptive metadata will support the need of users to identify, understand, and differentiate the content, and to know whether restrictions apply. Participants are from both the Still Image and Audio-Visual Working Groups.

Current Projects/Reference Material

• Embedded Metadata
• Project Charter

Content Categories and Digitization Objectives

This subgroup has drafted objectives for the digital reformatting of printed matter, documents and manuscripts, pictorial and fine art content. The content categories are defined in terms of the "physical" items found in many library and archive collections. Each category is then associated with reformatting objectives expressed as “use cases”, followed by recommended specifications for each.  
(Since the work of this Sub Group has been formatted as a set of specifications, this content is also listed under “Guidelines”.) 

Current Projects/Reference Material

• Categories and Objectives

Archival Color

Since there are special considerations involved in capturing color adequately in the imaging process, the Still Image Group is collaborating with the CIE Technical Committee on Archival Colour Imaging to address this challenge.  
The combined group will concentrate on practical solutions to encode the data from imaging of content in a manner that has a known accuracy, can create an accurate representation of the object when displayed, and where the encoding model is sustainable.

To address this challenge, the Still Image Group is collaborating with the CIE Technical Committee on Archival Colour Imaging. This committee (TC 8-09: Archival Colour Imaging) was created with the objective of recommending "a set of techniques for the accurate capture, encoding and long-term preservation of colour descriptions of digital images that are either born digital or the result of digitizing 2D static physical objects including documents, maps, photographic materials and paintings.

The CIE and the Still Image Group initially will concentrate on practical solutions that concentrate on existing RGB and other tristimulus-based methods to encode the data from imaging of content in a manner that has a known accuracy, can create an accurate representation of the object when displayed, and where the encoding model is sustainable.

Technical Metadata

This subgroup will identify the needed technical metadata for sound recordings, still images, and moving images, will compare the element sets used by various federal agencies, and will recommend a core metadata set for all agencies.  Participants are from both the Still Image and Audio Visual Working groups.