NON-BLIND IMAGE WATERMARKING SCHEME USING BI-DIMENSIONAL EMPIRICAL MODE DECOMPOSITION, DWT, DCT AND FUZZY SET
| Main Authors: | Noura Alexendre, Ntsama Eloundou Pascal, Bitjoka Laurent |
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| Format: | Article |
| Terbitan: |
, 2017
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/581047 |
Daftar Isi:
- The traffic of digital images has increased rapidly in the wide networks. The protection of this kind of data becomes important for many reasons such as confidentiality, authenticity and security. Nowadays, the most important engine to provide authenticity is watermarking. In this paper we present a method of invisible and robust hybrid watermarking to guarantee the authenticity and the confidentiality of images. This method or algorithm combines Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT) and Bi-dimensional Empirical Mode Decomposition (BEMD) .In fact we propose to apply the BEMD to the original image then we take the First Intrinsic Mode Function (IMFs) decomposition of the image, we apply the Discrete Wavelet Transform (DWT) level 2, then we apply the Discrete Cosine Transform (DCT), to obtained news coefficients. It is here that we proceed with the integration of the mark coefficients after use of fuzzy set, DWT and DCT transforms. The method is not blind because it makes use of the original image for extracting the mark. The method is robust to certain usual attacks such as, filtering, adding noise and rotation. Results tested on different pictures by some attacks, are Satisfactory in terms of imperceptibility and robustness with measures of peak signal-to-noise ratio (PSNR).