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Table 2 PSNR, MAE, \(\mathrm{PSNR}_{\mathrm{E}}\), and CPU time (seconds) of all methods for the Lena image (\(300\times 300\))

From: A class of singular diffusion equations based on the convex–nonconvex variation model for noise removal

  σ
  PSNR MAE \(\mathrm{PSNR}_{\mathrm{E}}\) CPU(s)
  20 30 30 50 30 50 30 50
PMS 29.64 27.97 8.40 10.36 11.35 \( \textbf{10}\textbf{.}\textbf{09} \) 1.69 4.86
AOS 29.94 28.13 8.11 10.00 11.75 \( \textbf{10}\textbf{.}\textbf{64} \) 0.65 0.83
PM 28.49 26.36 9.58 12.25 10.77 9.53 0.80 0.92
TV 28.62 26.84 9.42 11.33 10.87 9.71 0.73 4.02
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