A Study on Weak Edge Detection of COVID-19’s CT Images Based on Histogram Equalization and Improved Canny Algorithm

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left"></td><td class="align_center">The Canny algorithm</td><td class="align_center">The HMS algorithm</td><td class="align_center">The ETAR algorithm</td><td class="align_center">The proposed algorithm</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">MSE</td><td class="align_center">9.2358</td><td class="align_center">9.3340</td><td class="align_center">9.3341</td><td class="align_center">1.8103</td></tr><tr><td class="align_left">SNR</td><td class="align_center">0.0460</td><td class="align_center">3.8837</td><td class="align_center">2.7741</td><td class="align_center">7.4247</td></tr><tr><td class="align_left">MAE</td><td class="align_center">173.6431</td><td class="align_center">172.6516</td><td class="align_center">174.6519</td><td class="align_center">67.1646</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison table of paving road detection indicators.</div>

Computational and Mathematical Methods in Medicine

tab6

Table 6

Table 6: A Study on Weak Edge Detection of COVID-19’s CT Images Based on Histogram Equalization and Improved Canny Algorithm 