Reversible Data Hiding in Encrypted Images Based on Adaptive Gradient Prediction

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Encrypted image</td><td class="align_center">Lena</td><td class="align_center">Crowd</td><td class="align_center">Lake</td><td class="align_center">Beans</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">PSNR</td><td class="align_center">9.2255</td><td class="align_center">8.2341</td><td class="align_center">8.2198</td><td class="align_center">7.6256</td></tr><tr><td class="align_left">SSIM</td><td class="align_center">0.0341</td><td class="align_center">0.0301</td><td class="align_center">0.0291</td><td class="align_center">0.0219</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

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Security and Communication Networks

tab7

Table 7

Table 7: Reversible Data Hiding in Encrypted Images Based on Adaptive Gradient Prediction 