Cryptanalysis and Improvement of an Efficient and Secure Medical Image Protection Scheme

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left"> </td><td align="center">Plain images</td><td align="center">Cipher images</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">
                    CT_Abdomen</td><td align="center">5.393012</td><td align="center">7.999323</td></tr><tr><td align="left">MR_Waist</td><td align="center">6.120326</td><td align="center">7.999312</td></tr><tr><td align="left">X_Lungs</td><td align="center">6.966350</td><td align="center">7.999353</td></tr><tr><td align="left">CT_Paranasal_sinus</td><td align="center">3.328586</td><td align="center">7.999324</td></tr><tr><td align="left">MR_Knee</td><td align="center">5.384937</td><td align="center">7.999296</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Entropies of plain images and cipher images.

Mathematical Problems in Engineering

tab3

Table 3

Table 3: Cryptanalysis and Improvement of an Efficient and Secure Medical Image Protection Scheme 