A Simple Image Encryption Based on Binary Image Affine Transformation and Zigzag Process

<table class="table-group" id="tab9"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Images</td><td class="align_center">Balantidium coli cyst (200 × 200)</td><td class="align_center">Echopelv (601 × 711)</td><td class="align_center">Girl (lena, 4.2.04) (512 × 512)</td><td class="align_center">Guefack (365 × 486)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Local entropy information</td><td class="align_center">7.9088</td><td class="align_center">7.9081</td><td class="align_center">7.9091</td><td class="align_center">7.9085</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Local entropies for the cipher images.</div>

Complexity

tab9

Table 9

Table 9: A Simple Image Encryption Based on Binary Image Affine Transformation and Zigzag Process 