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Article detail · 2002

Hierarchical watermarking for secure image authentication with localization

Journal

IEEE Transactions on Image Processing

ISSN 1057-7149

YÖKSİS OpenAlex SJR Q1 JCR Q1 Citations 369 Top 1% Percentile 99.3% FWCI 16.72
Year
2002
Type
article

Data source split

  • YÖKSİS YÖKSİS article record
  • YÖKSİS venue IEEE TRANSACTIONS ON IMAGE PROCESSING
  • Catalog match (ISSN) IEEE Transactions on Image Processing
  • OpenAlex OpenAlex enrichment (abstract, citations, topics)

Abstract

OpenAlex · English

Several fragile watermarking schemes presented in the literature are either vulnerable to vector quantization (VQ) counterfeiting attacks or sacrifice localization accuracy to improve security. Using a hierarchical structure, we propose a method that thwarts the VQ attack while sustaining the superior localization properties of blockwise independent watermarking methods. In particular, we propose dividing the image into blocks in a multilevel hierarchy and calculating block signatures in this hierarchy. While signatures of small blocks on the lowest level of the hierarchy ensure superior accuracy of tamper localization, higher level block signatures provide increasing resistance to VQ attacks. At the top level, a signature calculated using the whole image completely thwarts the counterfeiting attack. Moreover, "sliding window" searches through the hierarchy enable the verification of untampered regions after an image has been cropped. We provide experimental results to demonstrate the effectiveness of our method.

Topics

Citations

OpenAlex cited_by_count. Not a WoS or Scopus citation count; those sources have no separate column here.

369 citations

OpenAlex cited_by_count (cache / database)

Authors

  1. Mehmet Utku Celik
  2. Gaurav Sharma
  3. Eli Saber
  4. AHMET MURAT TEKALP KOÇ ÜNİVERSİTESİ