# Hyperspectral Data: Efficient and Secure Transmission
## 2 An Efficient and Secure Transmission Framework
### An Effective Implementation of the Proposed Framework
#### 2.1.1 Reversible Invisible Watermarking Scheme for Hyperspectral Images
Figure 3: Histogram of the average PSNR achieved for the watermark \(w_{1}\) and the watermark \(w_{2}\) (Dataset 2). \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Hyperspectral Image**} & \multicolumn{3}{c}{**Average BPP**} \\ \cline{2-4}  & \(N\) = 8, \(B\) = 1 & \(N\) = 8, \(B\) = 2 & \(N\) = 16, \(B\) = 2 \\ \hline Yellowstone (calibrated) & 3.9511 & 3.8280 & 3.9511 \\ Yellowstone (uncalibrated) & 6.5262 & 6.2328 & 6.5262 \\ Hawaii (uncalibrated) & 2.9533 & 2.8748 & 2.9533 \\ Maine (uncalibrated) & 3.0746 & 2.9528 & 3.0746 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Achieved results in terms of BPP (Dataset 2). ## 4 Conclusions and Future Works

Hyperspectral data are involved in real-life and sensitive applications (e.g., geoscience or military applications). In addition, the acquisition of such data is onerous and expensive. By considering such aspects, it is important to protect them by allowing the verification of the inalterability of these data by a receiver (since such data are often exchanged among several entities). In this paper, we have focused on the protection and the efficient transmission of hyperspectral data by revisiting a framework for the secure and efficient transmission of hyperspectral images. This framework combines a reversible invisible watermarking scheme and the LMBHI algorithm. In future work, we will consider the possible design of a hybrid approach which provides protection and compression at the same time, as well as the extension of the proposed framework to other typologies of 3-D data: e.g., 3-D medical images [15], etc. The authors would like to thank their student [PERSON], who tested a preliminary version of the reversible invisible watermarking scheme. [PERSON] and [PERSON] worked together and contributed equally. The authors declare no conflict of interest. ## References

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