Recognition of High Difference Features in Urban Planning Images Based on Morphological Filtering

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/amp/volume-2021/3736735/figures/3736735.fig.007a.svgz" name="3736735.fig.007a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Gray level 16</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/amp/volume-2021/3736735/figures/3736735.fig.007b.svgz" name="3736735.fig.007b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Gray level 32</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/amp/volume-2021/3736735/figures/3736735.fig.007c.svgz" name="3736735.fig.007c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Gray level 64</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/amp/volume-2021/3736735/figures/3736735.fig.007d.svgz" name="3736735.fig.007d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Gray level 128</td></tr></table>

<div>Curve comparison of image similarity at different gray levels.</div>

Advances in Mathematical Physics

fig7

Figure 7

Figure 7: Recognition of High Difference Features in Urban Planning Images Based on Morphological Filtering 