Publication Type:

Journal Article


Informatica (Ljubljana), Volume 32, Number 3, p.299-306 (2008)



Access control, Authentication, Authentication techniques, Cosine transforms, Dct coefficients, Digital watermarking, Discrete cosine transforms, Electric fault location, Frobenius norms, Host images, Image authentications, Image blocks, Image processing, Image processing operations, Independent component analysis, Independent components, Mixing, Mixing matrixes, Papermaking, Watermarking


This paper proposes a novel approach to content-based watermarking for image authentication that is based on Independent Component Analysis (WA). In the scheme proposed here, ICA is applied to blocks of the host image and the resulting mixing matrix represents the features of the image blocks, Frobenius norm of the mixing matrix is adopted as the content-based feature. This is embedded as the watermark in a mid-frequency DCT coefficient of the block. This authentication technique is robust against incidental image processing operations, but detects malicious tampering and correctly locates the tampered regions.


cited By (since 1996)3

Cite this Research Publication

Dr. Latha Parameswaran and Anbumani, K., “Content-based watermarking for image authentication using independent component analysis”, Informatica (Ljubljana), vol. 32, pp. 299-306, 2008.