Book Reading Interface: Image Processing Issues
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Book Reading Interface: Image Processing Issues J.Chetan, V.Sreekanth, Rakesh Babu Vamshi Ambati and C.V.Jawahar International Institute of Information Technology Hyderabad, India Requirements Usability Navigate through pages Easy and simple to use Pleasant to read images Accessibility

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Book Reading Interface: Image Processing IssuesJ.Chetan, V.Sreekanth, Rakesh Babu Vamshi Ambati and C.V.JawaharInternational Institute of Information Technology Hyderabad, India

IIIT Hyderabad - http://dli.iiit.ac.in/


Requirements l.jpg
Requirements

  • Usability

    • Navigate through pages

    • Easy and simple to use

    • Pleasant to read images

  • Accessibility

    • Serving low band-width users

    • Resource aware

IIIT Hyderabad - http://dli.iiit.ac.in/


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Images in Universal Digital Library

IIIT Hyderabad - http://dli.iiit.ac.in/


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Image format in ULIB

  • PROS

    • Archival quality images

    • Good to reproduce in print

  • CONS

    • Huge size demands greater bandwidth

    • Requires third party apps to display online

  • But….

    • TIFF is not the only format to display images

    • User does not need high resolution images all the time

    • User may not need to see original scanned sizes of the images all the time

      (Good enough vs Perfect images)

IIIT Hyderabad - http://dli.iiit.ac.in/


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PNG v.s TIFF

IIIT Hyderabad - http://dli.iiit.ac.in/


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What are the possibilities?

  • Store various formats of images at various resolutions (pre-compute)

    • All possible resolutions/sizes may be difficult to calculate ahead of time

    • Requires more space

  • Perform on the fly conversion to other formats and resolutions

    • We follow this approach

IIIT Hyderabad - http://dli.iiit.ac.in/


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Book reading interface

  • Image server

  • TIFF Plug-in

  • Book Reading Interface

    • Real experience of reading book

    • Display thumbnail display for quick browsing

    • Printing and viewing the high resolution TIFF images

IIIT Hyderabad - http://dli.iiit.ac.in/


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Statistics from Open source Image Processing Libraries

IIIT Hyderabad - http://dli.iiit.ac.in/


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Image Server

  • On fly conversion of formats (PNG, JPEG, etc…)

  • Thumbnails

  • Resizing

  • Smoothing

  • Configurable

  • Advantages:

    • Takes care of Low band width people

    • Other Applications (WAP)

    • Open Source

IIIT Hyderabad - http://dli.iiit.ac.in/


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Smoothing

IIIT Hyderabad - http://dli.iiit.ac.in/


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Anti-aliasing (future work)

IIIT Hyderabad - http://dli.iiit.ac.in/


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Architecture

IIIT Hyderabad - http://dli.iiit.ac.in/


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Statistics

IIIT Hyderabad - http://dli.iiit.ac.in/


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Screen shot of book reader

IIIT Hyderabad - http://dli.iiit.ac.in/


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Screen shot of plug-in

IIIT Hyderabad - http://dli.iiit.ac.in/


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Thank you

http://dli.iiit.ac.in/

IIIT Hyderabad - http://dli.iiit.ac.in/


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