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Tools and Libraries for Document Analysis and Recognition

Tools and Libraries for Document Analysis and Recognition. Tools. Image manipulation tools Viewers Conversion tools Drawing tools Image data preparation tools Image selection tools Truthing tools System development tools HWAI demo Word seg tool Digit string recognition. Libraries.

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Tools and Libraries for Document Analysis and Recognition

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  1. Tools and Libraries for Document Analysis and Recognition

  2. Tools • Image manipulation tools • Viewers • Conversion tools • Drawing tools • Image data preparation tools • Image selection tools • Truthing tools • System development tools • HWAI demo • Word seg tool • Digit string recognition

  3. Libraries • General image libraries • Tiff, bitmap • Hips • Libraries for Document recognition • Binarization • Chaincode • Connected component • Others

  4. Language for making tools • Tcl/tk • Java • VC++

  5. Tools: Image manipulation tools • Viewers • On solaris: Chips, xv • Chips –i image.hips • On Windows: • xpaint, the basic, easy for getting screen shot. • irfanView– my favorite, including some basic image processing functions

  6. Tools: Image manipulation tools • Conversion tools • On Solaris: • Convert in_image.tif out_image.gif • tifftohips • Hipstotiff • On Windows • irfanView to open an image and save it to the format you want • CxImage library for your own implementation, reference: www.codeproject.com search for CxImage • Drawing tools • For prepare prsentations – needed?

  7. Tools: Image data preparation tools • Image selection tools • Need: to select training images from a large set of images. • Check_digits imageFileName.list > tselected.list • Image1.hips • Image6.hips • …..

  8. Tools: Image data preparation tools • Truthing tools • Truther image.list >out • Image1 1505 • Image2 4237 • Image3 111 • …

  9. Tools: System development tools • Word segmentation tool

  10. Tools: System development tools • Digit string recognition

  11. Tools: System development tools • HWAI demo

  12. Libraries: General image libraries • Tiff, bitmap • Available free for both Solaris and Windows • Hips • CEDAR internal library • Hipl_format.h

  13. Libraries: General image libraries • Libraries for Document recognition • Binarization • A-thresh: Atsu’s global thresholding algorithm, code available • E-thresh: a local-adaptive thresholding, code avaliable • Oathresh: another global thresholding algorithm

  14. Libraries: General image libraries • Libraries for Document recognition • Chaincode • Connected component • Others

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