Image content detection method using correlation coefficient between pixel value histograms

• Imamura, Kousuke

• Kuroda, Hideo

• Fujimura, Makoto

Abstract

An extraction method for searching for unauthorized copies of an image on the Internet is required in image search to make use of digital watermarks. In this paper, we propose an efficient two-stage image search method for extraction of illegal copies of a target image. The first stage is a pre-search, which searches for candidate of illegal images by some simple method. The next stage is the main search, which extracts embedded copyright information from the candidate and decides whether the image is an illegal copy of the target. In addition, we propose a simple image search method which uses the correlation coefficient between pixel value histograms of images as a pre-search method. The proposed pre-search method is useful because the proposed method is possible to combine with the current extraction technologies of embedded information. The performance of the proposed pre-search method is evaluated through computer simulations. © 2011 Springer-Verlag.

Journal

• Communications in Computer and Information Science

  Communications in Computer and Information Science 260 (CCIS), 1-9, 2011-01-01

  Springer-Verlag

Keywords

• Correlation coefficient
• Digital watermark
• Image search
• Pixel value histogram

Details

• CRID: 1050564285890112256
• NII Article ID: 120003959456
• ISSN: 18650929
• Web Site: http://hdl.handle.net/2297/30320
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles