Perceptual image hashing via feature points: Performance evaluation and tradeoffs

Vishal Monga, Brian L. Evans

Research output: Contribution to journalArticlepeer-review

309 Scopus citations


We propose an image hashing paradigm using visually significant feature points. The feature points should be largely invariant under perceptually insignificant distortions. To satisfy this, we propose an iterative feature detector to extract significant geometry preserving feature points. We apply probabilistic quantization on the derived features to introduce randomness, which, in turn, reduces vulnerability to adversarial attacks. The proposed hash algorithm withstands standard benchmark (e.g., Stirmark) attacks, including compression, geometric distortions of scaling and small-angle rotation, and common signal-processing operations. Content changing (malicious) manipulations of image data are also accurately detected. Detailed statistical analysis in the form of receiver operating characteristic (ROC) curves is presented and reveals the success of the proposed scheme in achieving perceptual robustness while avoiding misclassification.

Original languageEnglish (US)
Pages (from-to)3452-3465
Number of pages14
JournalIEEE Transactions on Image Processing
Issue number11
StatePublished - Nov 2006

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Graphics and Computer-Aided Design


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