3. Conversion

Key Concepts

introduction
scanning factors
rich digital master
benchmarking
  text
  stroke
  continuous-tone   halftone
proposed method guidelines

additional reading


  

 

Contents Selection- intro Intro- digital images Conversion-guidelines Quality Control Metadata Technical Presentation Digital Preservation Management Continuing Education
Conversion-benchmarking halftone Conversion-additional reading

PROPOSED METHODOLOGY FOR DETERMINING CONVERSION REQUIREMENTS
In Moving Theory into Practice: Digital Imaging for Libraries and Archives, a methodology is proposed for determining conversion requirements for a range of cultural heritage resources, including printed text, manuscripts, works of art on paper, and photographs. This methodology is based on the following steps:

  • Document assessment & objective characterization
  • Translation to digital equivalencies
  • Assignment of tolerance values for pass/fail
  • System calibration and performance testing
  • Image evaluation via visual inspection and software analysis
  • Recording of technical documentation
To see what some institutions recommend for conversion requirements, click on REPRESENTATIVE INSTITUTIONAL REQUIREMENTS FOR CONVERSION.

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Conversion - benchmarking halftoneConversion - additional reading
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