Hierarchical embedment of supplementary information into character patterns by changing color

Research output: Contribution to journalArticle

Abstract

With development of cyber physical systems, information hiding technology that can go through the real environment has been expected, while some methods for embedding supplementary information into character patterns for improving recognition accuracy have been studied. If we change the design of character patterns drastically, it will become unnatural and readability will be lost. Supplementary information should be embedded as a natural design for humans, and it should be accurately extracted by using a camera. In this paper, utilizing the fact that human eyes are less sensitive to the change in color than in the luminance, we propose a method for improving recognition accuracy by embedding supplementary information hierarchically into character patterns by changing color of the region to some extent where it will not be visible for human.

Original languageEnglish
Pages (from-to)525-533
Number of pages9
JournalJournal of the Institute of Image Electronics Engineers of Japan
Volume43
Issue number4
Publication statusPublished - 2014

Keywords

  • Character Pattern
  • Color Information
  • HSV color space
  • Information Embedment
  • Information Hiding

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering

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