Proceedings ArticleDOI
Image hashing by SDQ-CSLBP
Varsha Patil,Tanuja Sarode +1 more
- pp 2057-2063
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TLDR
The proposed method of SDQ-CSLBP extract texture feature using CSLBP with standard deviation as weight factor with experimental results show that the proposed method is robust against content preserving manipulation and sensitive to content changing and structural tampering.Abstract:
Approach for image hashing is to use powerful feature descriptor which captures essence of an image. Applications of image hashing lies in the area of content authentication, structural tampering detection, retrieval and recognition. Hashing is a compact summarized information of an image. Center Symmetric Local Binary Pattern (CSLBP) is one of the powerful texture feature descriptor which captures the smallest amount of change. Using CSLBP, appressed hash code can be obtained for an image. If CSLBP feature is weighted by a boost factor, it will enhance success rate of an image hashing. The proposed method of SDQ-CSLBP extract texture feature using CSLBP with standard deviation as weight factor. Standard deviation which represents local contrast is also a powerful descriptor. Resultant histogram of CSLBP is of 16 bin for each block of an image. Further it can be compressed to 8 bin by using the flipped difference concept. Without a weight factor, compressed CSLBP has low discrimination power. Experimental results show that the proposed method is robust against content preserving manipulation and sensitive to content changing and structural tampering.read more
Citations
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Journal ArticleDOI
Robust image hashing with multidimensional scaling
TL;DR: This study investigates the use of MDS in image hashing and proposes an MDS-based hashing algorithm resistant to any-angle rotation that outperforms some state-of-the-art algorithms in classification with respect to robustness and discrimination.
Journal ArticleDOI
Perceptual Image Hashing Using Latent Low-Rank Representation and Uniform LBP
TL;DR: Experimental results show that the proposed hashing algorithm is robust against many types of distortions and attacks, such as noise addition, low-pass filtering, rotation, scaling, and JPEG compression, and outperforms other local binary patterns (LBP) based image hashing schemes in terms of perceptual robustness and discriminability.
Journal ArticleDOI
Image Hashing Using DWT-CSLBP
Varsha Patil,Tanuja Sarode +1 more
TL;DR: A robust image hashing method is proposed by combining features of CSLBP and Discrete Wavelet Transform and shows that the proposed scheme is robust against content preserving operations and sensitive to malicious operations.
Proceedings ArticleDOI
Image hashing by CCQ-CSLBP
Varsha Patil,Tanuja Sarode +1 more
TL;DR: The proposed hashing method CCQ-CSLBP (Compressed CSLBP with Correlation Coefficient) for authentication utilized correlation coefficient as a weight factor in CSL BP, to increase the discrimination power of compressed C SLBP.
Proceedings ArticleDOI
Image hashing by LoG-QCSLBP
Varsha Patil,Tanuja Sarode +1 more
TL;DR: An image hashing algorithm for authentication and tampering based on texture features is presented, and by incorporating the weight of a local descriptor, discrimination power of compressed CSLBP is enhanced.
References
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Advances in Computing, Communications and Informatics (ICACCI)
Sabu M. Thampi,Michal Wozniak,Oge Marques,Dilip Krishnaswamy,Christian Callegari,Hideyuki Takagi,Zoran Bojkovic,Neeli R. Prasad,Jose M. Alcaraz Calero,Joel J. P. C. Rodrigues,Natarajan Meghanathan,Ravi Sandhu +11 more
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Proceedings ArticleDOI
Spatiograms versus histograms for region-based tracking
TL;DR: This work shows how to use spatiograms in kernel-based trackers, deriving a mean shift procedure in which individual pixels vote not only for the amount of shift but also for its direction, and shows improved tracking results compared with histograms.