Fig. 5

Size reduction of viral samples for all M. The first image shows the original viral signature \(\mathbf {g_i}\), and the second presents the resized vector \(\textbf{r}(M)\) for \(M=64\). The third image shows the resized vector \(\textbf{r}(M)\) for \(M=128\). Finally, the last image shows the resized vector \(\textbf{r}(M)\) for \(M=256\). a SARS-CoV-2 Virus (GU553363). b Betacoronavirus-1 Virus (KX538977)