Ichiro Fujinaga and Jenn Riley

Digital Image Capture of Musical Scores

Bit Depth Comparison - Bitonal vs. 8-bit Grayscale

Click the detail to see the full page.
bitonal scan, detail
  • Detail from miniature score, scanned at 1000 dpi, downsampled to match size of grayscale detail
  • The spaces between beams are not adequately rendered
  • Perhaps a change in threshold level would improve detail capture, but to do this individually for every page would require a great deal of manual adjustment or very advanced software
grayscale scan, detail
  • Detail from miniature score, scanned at 600 dpi
  • Good detail reproduction.
  • Even with poor contrast settings for this page, all relevant detail is captured

Back to ISMIR 2002 supporting materials