Figure 5

Smoothing of PC12 cells in 2D by Example 3. A) Raw surface stain, B) smoothing by coherence enhancing diffusion (method = ’ced’), C) directional coherence enhancing diffusion (method = ’dirced’), and D) Gaussian smoothing (method = ’gaussian’). The sharpness is better preserved by the anisotropic filters (B and C), which makes them more suitable for the enhancement of surface stained cells.