LEADTOOLS OMR Module

What's new in LEADTOOLS Document Engine V17.5

• Detect, read and write Barcodes in Silverlight and Windows Phone
• New high-level Barcode design for .NETsimplifies adding support for all barcode types in your application without any special knowledge of barcode symbologies
• Dramatically increased barcode recognition speed by up to 9X
• Automated cleanup for barcodes
• PDF updates and improvements
  • PDF runtime now requires only a single DLL for distribution
  • Merge multiple PDF or Postscript files into a single PDF document
  • Split a PDF into multiple documents
  • Extract text with properties such as bounding rectangle, font information and color
  • Extract hyperlinks, bookmarks and internal links
  • Load and save PDF metadata such as Title, Author, Subject, Keywords and Producer
  • New PDF Document Editor with extended support for adding, replacing, and deleting pages in any PDF file
  • Enhanced PDF encryption support
  • Convert Postscript files to PDF with full control over distiller, encryption and compatability settings
  • Convert existing PDF files to linearized PDFs(optimized for web viewing)
  • Convert existing PDF files to PDF/A-1B
  • Save fully customized UNICODE Bookmarks in PDF files
  • Added support for multi-threaded PDF load
  • Added support for writing PDF 1.3 and 1.6
  • New PDF Info Extractor gets information about PDF version, image width, height, bit depth, compression and DPI
• OCR Advantage Engine updates and improvements
  • AutoZone has been improved to provide fewer, more accurate zones, improving OCR results
  • Dramatically accelerated AutoZone detection, improving overall performance for OCR
  • Faster Advanced Table Detection, providing better performance when dealing with documents containing tables
  • New image pre-processing features to improve OCR results including fixing broken letters, dithered text, inverted text and more.
  • Now supports the following languages: Bulgarian, Catalan, Chinese (Traditional and Simplified), Czech, Danish, Dutch, Finnish, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Swedish, Turkish, Ukrainian and Vietnamese
  • Added support for built-in Spellcheckingincluding NHunspell and Microsoft's System.Windows.Controls.SpellCheck engines
• Enhancements to Existing File Formats
  • Support for loading Office 2007 formats: DOCX, XLSX and PPTX
  • Optimized load performance for DOC format
  • Added ability to load Office formats from memory
  • Added support for JBIG2 with non-sequential headers (i.e. random access)
  • Support for loading refinement segments in JBIG2 format
• Increased the speed of the Line Remove image processing function
• New ImageColorType function for detecting whether the image is mostly black and white, grayscale or color.
• Virtual Printer now supports network printing

The OMR features are included as an add-on module to extend the functionality of the LEADTOOLS Document Imaging Suite and the LEADTOOLS OCR Module by providing properties, methods, and events for easily incorporating the ScanSoft SDK 12 Pro engine into your applications.

The frame for the mark can be a rectangle, a hexagon, a circle, or an ellipse and can be filled in by any method (x, tick, hatching, horizontal or vertical lines, etc.). The frame may be visible or invisible (scanner dropout) in the image sent for recognition.

OMR Benchmarks

Recognition accuracy is 99.95% and the average recognition time is 0.005 seconds per checkbox zone (measured on a computer with 166 MHz Pentium Processor / 16 MB RAM).