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Assessing microfilm digitization vendors

Assessing microfilm digitization vendors

Vendor candidates

Characteristics of sample films

  • Includes handwriting
  • Includes printed text
  • Includes multiple titles
  • Includes splices

Imaging Services' orders for microform digitization services will have the following characteristics:

  • Digitization of entire reels or entire fiche-sheets.

Specifications

image format

TIFF / 8-bit grayscale / uncompressed / embedded sGray ICC profile

OCR format

ALTO, UTF-8 encoded


directory structure and file naming

image files: [document id]_####.tif

ocr files: [document id]_####.xml

directories: [document id]

Example:

└── 990009660700203941
    ├── 990009660700203941_0001.tif
    ├── 990009660700203941_0001.xml
    ├── 990009660700203941_0002.tif
    ├── 990009660700203941_0002.xml
    ├── 990009660700203941_0003.tif
    ├── 990009660700203941_0003.xml
    ├── 990009660700203941_0004.tif
    ├── 990009660700203941_0004.xml
    ├── 990009660700203941_0005.tif
    ├── 990009660700203941_0005.xml
    ├── [...]
    ├── 990009660700203941_9999.tif
    ├── 990009660700203941_9999.xml

Test film for microform scanning vendors

  • OCR not requested
  • Camera master (1N), 35mm, single reel
  • Reduction ratio: 12
  • Multiple sonic splices
  • 1st and 2nd documents include handwritten and printed text
  • 3rd document: published item filmed 2-up
  • 4th document: index cards arranged in horizontal pairs
    • Vendor should deliver one image file (2 index card images) for each horizontal pair
  • Includes 4 works to be named and arranged as follows, using JOB NUMBER or document name and 4 digit sequential number:

    test film: file system organization and structure
        ├── 05_2907_01
        │   ├── 05_2907_01_0001.tif
        │   ├── 05_2907_01_0002.tif
        │   ├── 05_2907_01_0003.tif
        │   ├── 05_2907_01_0004.tif
        │   ├── 05_2907_01_0005.tif
        │   ├── [...]
        │   └── 05_2907_01_9999.tif
        ├── 05_2907_02
        │   ├── 05_2907_02_0001.tif
        │   ├── 05_2907_02_0002.tif
        │   ├── 05_2907_02_0003.tif
        │   ├── 05_2907_02_0004.tif
        │   ├── 05_2907_02_0005.tif
        │   ├── [...]
        │   └── 05_2907_02_9999.tif
        ├── 82_4897
        │   ├── 82_4897_0001.tif
        │   ├── 82_4897_0002.tif
        │   ├── 82_4897_0003.tif
        │   ├── 82_4897_0004.tif
        │   ├── 82_4897_0005.tif
        │   ├── [...]
        │   └── 82_4897_9999.tif
        └── index_cards
            ├── index_cards_0001.tif
            ├── index_cards_0002.tif
            ├── index_cards_0003.tif
            ├── index_cards_0004.tif
            ├── index_cards_0005.tif
            ├── [...]
            └── index_cards_9999.tif

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