Earticle

초록

영어

Quick response (QR) code is the prevalent trademark for a type of matrix barcode symbol. That code is always scanned to efficiently acquire data, especially for mobile device users. It involves the capabilities of data storage, reliable readability and strong error correction. This paper utilizes these properties of a QR code to propose an image tamper detection and recovery scheme for grayscale images. The image to be protected is first subsampled and decomposed the principal energy compaction for image blocks. These are regarded as the image authentication and recovery data and then are encoded into the pattern of a QR code. The QR code is subsequently embedded into the original image. Experimental results showed that the authentication and recovery data in a QR code is able to sustain certain perceptible distortions such that the proposed scheme can detect tampered regions clearly and recover them roughly. Moreover, the proposed scheme also provides a better embedded image quality in comparison with the previous method.

목차

Abstract
 1. Introduction
 2. Review of Chen and Chen’s Scheme
 3. The proposed Scheme
  3.1. Authentication Data Generation and Embedding Procedure
  3.2. Image Tamper Detection Procedure
  3.3. Image content recovery procedure
 4. Experimental Results and Discussion
 5. Conclusions
 References

키워드

저자

• Wen-Chuan Wu [ Department of Computer Science and Information Engineering, Aletheia University, 32 Zhenli St., Taipei 25103, Taiwan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605