American Memory: Technical summary
URL
http://lcweb2.loc.gov/ammem/odmdhtml/preshome.html
Collection Overview
- Description
-
Portraits of every American president and most first ladies, together
with some other scenes relating to the presidents.
- Source collection
-
N/A
- Technical features
-
Portraits and scenes, image quality is good.
- Original material formats
- Copy photographs (some are copies of non-photographic prints)
- Number of original items
- 156
- Status of collection
- Available online as of November 1997.
- Public access
- The Library is not aware of any U.S. copyright or other restrictions
in the materials in this collection. See notes on rights and
restrictions provided by the Library to users of this collection.
Aids to intellectual access
- Type & granularity
- MARC bibliographic records. Each bib. record describes a single item.
Sample
bibliographic display in American Memory.
- Linking to digital reproductions
- Bibliographic record contains identifier used in filenames for all versions of image.
Last character of filename is feature code for image type.
Digital reproductions
Total file-space for digital reproductions: 75
Mbytes
| Photographs |
Archival image |
Service image
(online) |
Inline thumbnail |
Additional
thumbnail |
| Marker |
Filename ends "u" |
Filename ends "r" |
Filename ends "t" |
Filename ends "t" |
| Formats |
TIFF |
JPEG/JFIF |
GIF |
TIFF |
| Tonal resolution (grayscale) |
8 bit |
8 bit |
8 bit |
8 bit |
Spatial resolution
(approx) |
1280x1024 pixels |
640x480 pixels |
150x100 pixels |
150x100 pixels |
| Quantity (approx) |
156 |
156 |
156 |
156 |
| Sample |
Sample archival |
Sample
service |
Sample thumbnail |
Sample thumbnail |
Library of Congress contribution to Digital Libraries Initiative - Phase II
[Site Map]
Collections available:
[List]
[Rights]
[Samples]
[Handover]
Technical notes:
[Documents]
[Images]
[Maps]
[Sound recordings]
[Motion pictures]
