Specifications for File Formats Martin R. Kalfatovic Smithsonian Institution Libraries &  Biodiversity Heritage Library Wo...
Digitization Specifications <ul><li>Minimum </li></ul><ul><ul><li>Biotonal: 300 ppi </li></ul></ul><ul><ul><li>Grayscale :...
File Formats <ul><li>CR2: Camera Raw </li></ul><ul><li>TIFF (uncompressed,LZW “lossless”) </li></ul><ul><li>JPEG 2000 (unc...
Derivative File Formats <ul><li>PDF </li></ul><ul><li>PDF B/W </li></ul><ul><li>OCR TXT </li></ul><ul><li>OCR with charact...
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File Format Specifications

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File Format Specifications. Martin R. Kalfatovic. Workshop Coleção de Obras Raras Essencial. 3-5 February 2010. São Paulo, Brazil.

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Transcript of "File Format Specifications"

  1. 1. Specifications for File Formats Martin R. Kalfatovic Smithsonian Institution Libraries & Biodiversity Heritage Library Workshop Coleção de Obras Raras Essencial, São Paulo: 3-5 February 2010
  2. 2. Digitization Specifications <ul><li>Minimum </li></ul><ul><ul><li>Biotonal: 300 ppi </li></ul></ul><ul><ul><li>Grayscale :300 ppi </li></ul></ul><ul><ul><li>Color: 300 ppi </li></ul></ul><ul><li>Preferred </li></ul><ul><ul><li>Bitonal: 600 ppi </li></ul></ul><ul><ul><li>Grayscale: 600 ppi </li></ul></ul><ul><ul><li>Color: 400 ppi </li></ul></ul>
  3. 3. File Formats <ul><li>CR2: Camera Raw </li></ul><ul><li>TIFF (uncompressed,LZW “lossless”) </li></ul><ul><li>JPEG 2000 (uncompressed, “lossless” ) </li></ul><ul><li>JPEG 2000 (compressed, “lossy”) </li></ul><ul><li>JPEG (very compressed, “lossy”) </li></ul>
  4. 4. Derivative File Formats <ul><li>PDF </li></ul><ul><li>PDF B/W </li></ul><ul><li>OCR TXT </li></ul><ul><li>OCR with character coordinates </li></ul><ul><li>Mobi (Kindle) </li></ul><ul><li>Epub (e-readers) </li></ul><ul><li>Daisy (audio readers) </li></ul>
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