Image Encryption with Double Spiral Scans and Chaotic Maps

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/scn/volume-2019/8694678/figures/8694678.fig.0015a.svgz" name="8694678.fig.0015a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>40 × 40 block</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/scn/volume-2019/8694678/figures/8694678.fig.0015b.svgz" name="8694678.fig.0015b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>100 × 140 block</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/scn/volume-2019/8694678/figures/8694678.fig.0015c.svgz" name="8694678.fig.0015c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>128 × 512 block</td></tr></table>

<div>Encrypted images with block missing.</div>

Security and Communication Networks

fig15

Figure 15

Figure 15: Image Encryption with Double Spiral Scans and Chaotic Maps 