Demonstration Draft Specifications (March 2005)

March 17, 2005

 

Draft Technical Specifications for

University of California Digitization Project

 

File Creation

Scanning: (includes deskewing, cleaning, cropping etc.)




preservation file: 8-bit grayscale, 600 pixels per inch, tif file format

current use file: 8-bit grayscale, 400 pixels per inch, tif file format (or jpeg file format, if cheaper: medium compression level (8 out of ten)?)

Paper-white level: 250-254

sharpening: moderate

OCR without zoning on 400 ppi files: (raw ocr, without any cleanup)

PDF Creation from 400 ppi files

 

 

Filenames

The Call Number will be supplied by UC Berkeley with the book and will be used as the prefix to the filename, replacing blanks with underscores. For example, F864 .M34 1970, becomes F864_.M34_1970.

The tiffs of the individual pages will use the call number followed by the page number, left padded with zeros to 4 digits, e.g., 0001.

Examples:

The pdf: F864_.M34_1970.pdf

Individual pages: F864_.M34_1970_0001.tif

F864_.M34_1970_0002.tif

F864_.M34_1970_0003.tif

F864_.M34_1970_0004.tif, etc

 

Technical Metadata

Assuming that all the images in one book are scanned on the same machine we only need the following technical metadata per book. If all books are scanned on the same machine we only need the following technical metadata for the entire project. If a value is needed that is not listed here, please contact us to get it added.

Tiffs/Images:

Type

Controlled vocabulary, pick one

digital still camera

reflection print scanner

transmission scanner

Brand

Free text

Examples: Phase One, Epson, Nikon

Model

Free text

Examples: PowerPhase, 836xl, LS-2000

Serial Number

Free text

Examples: AK001109, 8204058, 212931

Bit Depth

Controlled vocabulary, pick one

1 (1 bit bitonal)

16,16,16 (TIFF, HDR)

4 (4 bit grayscale)

8 (8 bit grayscale or palletized color)

8,8,8 (RGB)

8,8,8,8 (CMYK)

Illumination

Controlled vocabulary, pick one

D55 Illuminant

D65 Illuminant

D75 Illuminant

Daylight

Flash

Fluorescent

Standard Illuminant A

Standard Illuminant B

Standard Illuminant C

Tungsten Lamp

ColorSpace

Controlled vocabulary, pick one

0 (Grayscale, White is Zero)

1 (Grayscale, Black is Zero)

2 (RGB)

3 (Palette Color)

4 (Transparency mask)

5 (CMYK)

6 (YCbCr)

8 (CIELab)

File Format

Controlled vocabulary

tif (standard for master image)

Compression

Controlled vocabulary, pick one

1 (Uncompressed)

2 (CCITT 1D)

3 (CCITT Group 3)

4 (CCITT Group 4)

5 (LZW)

6 (JPEG)

7 (PackBits)

Color Profile

free text

Name of a well-known profile

Example: Adobe RGB, Colormatch RGB

 

If a digital camera is used, we also need:

Filter

0 if none, name of filter if used

Glass

0 if none, information on glass if used

 

 

PDFs:

 

Conversion Software

Free text (conversion software)

Example: Acrobat PDF for Word 5.0

Hardware

Hardware Platform used to create PDF

Example: Microsoft Windows 2000 Professional

OCR Conversion Software

Free text (software used to create OCR)

Example: ABBYfinereader 6.0

OCR Hardware

Hardware Platform used to create OCR

Example: Microsoft Windows XP

Language

Used in document

Example: English

 

 

File Delivery

 

Files will be delivered to UC Berkeley Digital Publishing Group (DPG) on CD or DVDs (vendor choice). The tiffs should be grouped together on one set of disks and the PDFs will be on another. The technical metadata can be sent as email attachments or on the disks with the PDFs. The vendor will notify DPG when the disks have been sent.

 

DPG will have 90 days to review the files and contact the vendor about problems.

 

Last updated: April 10, 2013