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How to improve the OCR accuracy

There are several ways to improve the OCR accuracy, they involve either adjusting the scanner settings or choosing high-quality source files.

  • Adjust resolution – 300DPI is usually recommended
  • Adjust color of scanned document - greyscale is recommended
  • Adjust brightness settings. You would use the Brightness property for this. A 50% brightness is usually suitable
  • File type and compression - Lossless compression types would be the better option (i.e. TIFF or PNG but not JPEG )

For more elaboration, please see our blog post on the matter.

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