Title
RevHashNet: Perceptually de-hashing real-valued image hashes for similarity retrieval.
Abstract
Image hashing has attracted increasing popularity in recent years. Some off-the-shelf image hashing methods are able to generate more compact and robust hashes for fast indexing and content-based similarity retrieval. However, the ability to infer original image contents from their real-valued image hashes has seldom been examined. Inherited from cryptographic hashing for image privacy protection, general image hashing is supposed to be a non-revertible function. Should there be a way to revert (or perceptually reconstruct) images from the corresponding real-valued image hashes? This paper explores the feasibility of perceptually image hashing reversion, and fill this gap by proposing a deep learning based framework, entitled RevHashNet. Given real-valued image hashes from certain image hashing methods, the proposed RevHashNet can automatically reconstruct perceptually similar images with respect to the original ones with high visual quality. Experiments and simulations on real image datasets support the de-hashing effectiveness of the proposed RevHashNet.
Year
DOI
Venue
2018
10.1016/j.image.2018.06.018
Signal Processing: Image Communication
Keywords
Field
DocType
RevHashNet,Image hashing reversion,Image de-hashing,Security,Deep learning
Computer vision,Computer science,Cryptographic hash function,Search engine indexing,Artificial intelligence,Hash function,Real image,Deep learning
Journal
Volume
ISSN
Citations 
68
0923-5965
1
PageRank 
References 
Authors
0.36
19
4
Name
Order
Citations
PageRank
Yongwei Wang110714.19
Hamid Palangi21657.32
Z. Jane Wang340655.43
Wang H47129.35