A framework for soft hashing and its application to robust image hashing

An increasing interest in the soft hashing problem has been witnessed in recent times. Techniques implementing soft hashing intend to mirror the behaviour of cryptographic hashing when the information to be hashed can be subject to different kinds of distortions. Many heuristic techniques for undertaking soft hashing of images and other multimedia data have been devised. Except for some attempts, a framework giving solid guidelines to solve the problem is largely lacking. In this extended summary we provide one possible approach to undertake the modelling of robust soft hashing, detailing the basic problems involved. We show how some prior schemes partly fit inside our model, and we provide an example of soft image hashing following the given scheme.

• Type: Conference
• Year: 2004
• Where: ICIP
• Authors: Elizabeth P. McCarthy, Félix Balado, Guenole C. M. Silvestre, Neil J. Hurley
• Keywords: Cryptographic Hashing, ICIP 2004, Image Processing, Robust Soft Hashing, Soft Hashing Intend, Soft Hashing Problem, Soft Image