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PNG (Portable Network Graphics) Specification, Version 1.2

PNG Working Group (1999-07)

This Page: http://www.copswiki.org/Common/M1727
Media Link: http://www.libpng.org/pub/png/spec/1.2/png-1.2.pdf
More Info: Election Integrity, Open Ballot Initiative

The PNG image standard is a proposed format for The Open Ballot Initiative. It has many positive features:
  • CRC error detection on chunk by chunk basis.
  • Excellent data compression, not lossy
  • Embedded text capability.
  • Amenable to inclusion of additional metadata, such as:
    • ballot number
    • precinct number
    • ballot type
    • page of the ballot
    • MD5 or other SHA digest of the entire image.
But there are drawbacks
  • Not a multi-image format (does not natively support multi-page ballots)


Media Form edit

Title PNG (Portable Network Graphics) Specification, Version 1.2
Publisher PNG Working Group
Pub Date 1999-07
Media Link http://www.libpng.org/pub/png/spec/1.2/png-1.2.pdf
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Keywords Election Integrity, Open Ballot Initiative
Media Type Linked Article, PDF
Media Group News, Research
Curator Rating Plain
Author Name Sortable
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Topic revision: r1 - 2016-12-29, RaymondLutz

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