Robust image hashing via DCT and LLE. Issue 62 (September 2016)
- Record Type:
- Journal Article
- Title:
- Robust image hashing via DCT and LLE. Issue 62 (September 2016)
- Main Title:
- Robust image hashing via DCT and LLE
- Authors:
- Tang, Zhenjun
Lao, Huan
Zhang, Xianquan
Liu, Kai - Abstract:
- Abstract: Image hashing is a novel technology of multimedia processing and is widely used in many applications, such as image authentication, image retrieval, image indexing, copy detection and image forensics. In this study, we propose an efficient image hashing algorithm with innovative use of discrete cosine transform (DCT) and local linear embedding (LLE). Specifically, input image is first preprocessed to build a normalized image and then color vector angles of the normalized image are extracted. Next, DCT is exploited to extract a stable feature matrix. Finally, data reduction with LLE is applied to the feature matrix and the variances of LLE results are quantized and encrypted to construct hash. Experiments with large image datasets are conducted to validate efficiency of the proposed hashing. The results show that the proposed hashing can resist normal digital operations and has good discrimination. Receiver operating characteristic (ROC) curve comparisons with state-of-the-art algorithms illustrate that the proposed hashing has better performances than the compared algorithms in classification between robustness and discrimination.
- Is Part Of:
- Computers & security. Issue 62(2016)
- Journal:
- Computers & security
- Issue:
- Issue 62(2016)
- Issue Display:
- Volume 62, Issue 62 (2016)
- Year:
- 2016
- Volume:
- 62
- Issue:
- 62
- Issue Sort Value:
- 2016-0062-0062-0000
- Page Start:
- 133
- Page End:
- 148
- Publication Date:
- 2016-09
- Subjects:
- Robust hashing -- Image hashing -- Color vector angle -- Local linear embedding -- Data reduction
Computer security -- Periodicals
Electronic data processing departments -- Security measures -- Periodicals
005.805 - Journal URLs:
- http://www.sciencedirect.com/science/journal/01674048 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.cose.2016.07.006 ↗
- Languages:
- English
- ISSNs:
- 0167-4048
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3394.781000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 2728.xml