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="tab7"><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">1.3192</td><td class="align_center">5.617</td><td class="align_center">1.3313</td><td class="align_center">1.1690</td></tr><tr><td class="align_left">SNR</td><td class="align_center">0.0397</td><td class="align_center">3.2443</td><td class="align_center">2.8746</td><td class="align_center">10.4839</td></tr><tr><td class="align_left">MAE</td><td class="align_center">195.9766</td><td class="align_center">174.4995</td><td class="align_center">196.9860</td><td class="align_center">41.1912</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison table of detection indexes for patchy lungs with field consolidation.</div>

Computational and Mathematical Methods in Medicine

tab7

Table 7

Table 7: A Study on Weak Edge Detection of COVID-19’s CT Images Based on Histogram Equalization and Improved Canny Algorithm 