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Project Description

**1. Project Title**

NDNP newspaper pages

**2. Description**

The Library of Congress (LC) and the National Endowment for the
Humanities are jointly developing the National Digital Newspaper Program
(NDNP). Ultimately, over a period of approximately 20 years, NDNP will
establish a national, digital resource of historically significant
newspapers published between 1836 and 1922, digitized by consortia
representing all states and U.S. territories. This searchable database
will be permanently maintained at the Library of Congress and be freely
accessible via the Internet. In order to create test data to facilitate
development of the system architecture, LC will scan microfilm from its
own newspaper holdings.

**3. Objective**

Deliver digital files for each original object supplied, including TIFF,
PDF, JPEG2000 and optical character recognition (OCR) output files.
Additionally, metadata at the issue/edition and page level will also be
delivered.

**4. Scope**

Between x and y newspaper pages, scanned from 35mm negative microfilm.

**5. Task Description**

1.  Overview

The contractor will create sets of digital images and metadata from
supplied newspaper microfilm reels, to conform to the technical
guidelines in this document and its appendices. Data and derivative
files will be produced for all images: page images, informational target
images and technical target images.

#### Requirements for Scanning

1.  The spatial resolution shall be 400 pixels-per-inch (ppi) relative
    to the original newspaper. If that is technically impossible, due to
    high reduction ratio of particular reels, the spatial resolution for
    those reels shall be 300 pixels-per-inch (ppi) relative to the
    original newspaper.

2.  8-bit grayscale

3.  TIFF 6.0 uncompressed.

4.  Two-up film should be split so that there is one page image per
    file.

5.  De-skew images with a skew of greater than 3 degrees.

6.  Crop to edge of page**.**

7.  Capture microfilm target frames. These image files to be identified
    as "targets" in metadata; will not be used for display.

8.  Capture scanning resolution targets (supplied by the Library of
    Congress) at the start of each session, to monitor scan quality.
    These target images should be delivered with microfilm targets and
    page images.

9.  TIFF headers shall incorporate data as described in attached file
    TIFFSpecs.pdf.

Note: the grayscale images delivered must have exactly the same
dimensions, spatial resolution, skew, and cropping as the images used
for OCR.

##### Required elements for OCR files:

1.  One OCR text file per page image. (Discrete files should be produced
    for each page, rather than for a multi-page issue or entire title).

2.  Each OCR text file name corresponds to the TIFF image it represents.

3.  Font point size data at the character or word level is required.

4.  OCR will be delivered in the format described in attached
    OCRSpecs.pdf and its associated alto_1-1-041.xsd.

Image sharpening software may be used in the OCR process, if it improves
the accuracy of the OCR output. Additional sharpened versions of the
TIFF files created as part of this process will **not** be delivered to
LC.

##### Required elements for PDF files

1.  PDFs should be version 1.4 or 1.5.

2.  Each searchable PDF file name corresponds to the TIFF image it
    represents.

3.  Files will have characteristics described in attached PDFSpecs.pdf.

##### Required elements for JPEG 2000 files

1.  Files will be JPEG2000, Part 1, (or ISO-15444).

2.  Each file name corresponds to the TIFF image it represents.

3.  JPEG2000 files will conform to the specification in attached
    JPEG2kSpecs.pdf

4.  As JPEG2000 is an emerging standard, the Library of Congress
    reserves the right to change the settings numbered 3-16 in
    JPEG2kSpecs.pdf.

#### Required Metadata

Metadata shall be created for each Issue/Edition and reel, conformant to
the definitions in the attached metadata_dictionary.doc. There will be
one XML record for each reel, and one XML record for each Issue/Edition
on that reel. A single batch file (example batchTemplate.xml attached)
will point to each Issue/Edition and reel record on the delivery media.
Example METS templates are attached for Issue/Editions
(issueTemplate.xml) and reels (reelTemplate.xml). Note: an Issue/Edition
record contains both information about that Issue/Edition and pages
within that Issue/Edition. A reel record contains information about the
reel and all target images on that reel. Issue/Edition records will also
be created for issues indicated as missing by a target on the film.

Information about each reel's density and resolution will be provided by
the Library of Congress for incorporation into the reel's XML file. This
information will be provided in a Microsoft Access Database.

The PREMIS and MIX metadata referenced in the templates is **not**
required at this time.

#### File and Directory Structure on Delivery Media

In the root directory of the portable hard drive will be the single
batch file pointing to each Issue/Edition and reel record on the
delivery media. Example:

batchfile.xml

Each title will be contained in its own directory, name matching the
title's LCCN.

Example:

/sn83045433/

Within each title directory, subdirectories will be created for each
scanned reel, with names matching the barcode on each reel. Example:

/sn83045433/0010049324a/

Within each reel subdirectory will be one metadata file for the reel,
named after its barcode number, the target images for that reel, and a
subdirectory for each newspaper issue/edition, named after its date and
edition order (typically 01).

Example reel metadata file:

/sn83045433/0010049324a/0010049324a.xml

Example subdirectory for the only edition from January 24, 1905:

/sn83045433/0010049324a/1905012401/

The metadata for that edition would be in:

/sn83045433/0010049324a/1905012401/1905012401.xml

In each issue/edition subdirectory will be the metadata file for that
issue, and all TIFF, JP2, PDF and OCR files for the pages in that
issue/edition.

If the issue/edition is one noted as missing from the guide to contents
or other filmed targets, the proper issue/edition subdirectory will be
created and contain the metadata file, but **no** TIFF, JP2, PDF or OCR
files. Example for "issue missing November 29, 1905":

/sn83045433/0010049324a/1905112901/1905112901.xml

Files shall be named in four digit, one-up manner, according to the
order of appearance on the scanned reel, whether the image is a target
or page. For example, a reel might contain in order, a technical target
(whose TIFF would be named):

/sn83045433/0010049324a/0001.tif

a title target:

/sn83045433/0010049324a/0002.tif

a guide to contents:

/sn83045433/0010049324a/0003.tif

and newspaper pages:

/sn83045433/0010049324a/1905012401/0004.tif

/sn83045433/0010049324a/1905012401/0005.tif

/sn83045433/0010049324a/1905012401/0006.tif

etcetera.

Each JP2, PDF and OCR file will have the same prefix as the TIFF file
from which it was derived, and will be located in the same directory as
its matching TIFF.

Example JP2, PDF and OCR files:

/sn83045433/0010049324a/1905012401/0004.jp2

/sn83045433/0010049324a/1905012401/0004.pdf

/sn83045433/0010049324a/1905012401/0004.xml

The scanning resolution technical target reel (the one to be run at
start of each scanning session) is not associated with a single LCCN, so
its directory structure will be delivered as:

/the-date-it-is-imaged/three-digit-one-up-number-in-case-more-than-one-per-day/barcode/

example for reel 00100493147 imaged on March 11, 2005

metadata file:

/20050311/001/00100493147/00100493147.xml

image files:

/20050311/001/00100493147/0001.tif

/20050311/001/00100493147/0002.tif

etc.

6\. Government Furnished Equipment (GFE)/ Government Furnished
Information (GFI)

The Library of Congress will furnish 500 Gigabyte magnetic storage media
required for image delivery.

**7. Deliverables/Delivery Schedule**

7.1 Delivery Media

The Library of Congress will furnish 500 Gigabyte magnetic storage media
required for image delivery. Contractor should keep a backup copy of
files until they have been notified by LC that they can be deleted.

2.  Delivery Schedule

Frequency of delivered batches will be determined at project startup, on
a schedule mutually agreed to by the contractor and the Library.

**8. Inspection and Acceptance Criteria**

Images will be inspected and accepted in accordance with the
requirements listed in Section E of the Statement of Work.

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