Fig. 6
From: Cryo-electron microscope image denoising based on the geodesic distance

a, c, e, g Projections from different directions of the CPV virus with the size of 4096 × 4096. In the experiment, the noise standard deviation is 50. These results verify the validity of the proposed denoising method. The four images are denoised by the proposed method, and the results are shown in (b), (d), (f), and (h)