Highlights
Automatically enhance, divide, and validate the COVID-19 CT images into regions with similar properties such as contrast and structure.
Efficient Kapur entropy-based multilevel thresholding unsupervised procedure.
Measure, visualize, and study comparisons of the infected by COVID-19 volume.
The experiment results indicate that the proposed method can reach the desired heat-mapping of COVID-19 lesion and has the potential to be used for clinical application including developing country.
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