An Overview of Perceptual Hashing
Yuhua Jiao · Dianzi xuebao · 2008
Perceptual hashing is a class of one way mappings from multimedia presentations to a perceptual hash value in terms of their perceptual content.It features the perceptual robustness and security.Perceptual hashing could be applied to multimedia content identification,retrieval,authentication,etc.On the basis of the human perceptual model,definition of perceptual hashing is proposed in this paper,as well as the properties and the general descriptions.Its typical algorithm reviews,application scenarios and benchmark are presented.The prospect of perceptual hashing algorithms and techniques is also discussed.