Table 2 Applying multistage security
From: MEO based secured, robust, high capacity and perceptual quality image watermarking in DWT-SVD domain
Stages | Detail description of given stage |
|---|---|
Stage-1: | Cover_Object is taken into Wavelet domain. |
Stage-2: | As per given ‘State’ the Pn_Sequence of Watermark using ‘Key1’ is generated. |
Stage-3: | Calculate AVG = average of Pn_Sequence |
Stage-4: | Apply thresholding with ‘Key1’ to generate ‘K’ required for scrambling. |
Stage-5: | Use Fibonacci-Lucas Transform for scrambling Watermark with K. |
Stage-6: | Apply Singular Value Decomposition, |
Stage-7: | Apply ‘Embedding Formula’ with given scale factor K1. This K1 will be used for optimization in Step-8. |
Stage-8: | Apply MEO to optimize PSNR and NC using K1 |