3.5. Mean Curvature Blur

3.5.1. Yleiskatsaus

Regularize geometry at a speed proportional to the local mean curvature value: this filter uses the mean curvature algorithm to blur the image preserving edges.

The Mean Curvature algorithm is described on Wikipedia.

3.5.2. Activating the Filter

This filter is found in the main menu under FiltersBlurMean Curvature Blur….

3.5.3. Valinnat

Kuva 17.16. Mean Curvature Blur filter parameters

”Mean Curvature Blur” filter parameters

Presets, Input Type, Clipping, Blending Options, Preview, Split view
[Huomaa] Huomaa

These options are described in Kohta 2, ”Common Features”.


Increasing Iterations increases blur.

3.5.4. Examples

Alkuperäinen kuva

Iterations = 4

Mean Curvature Blur can be used to denoise an image:

Kuva 17.17. Mean Curvature Blur to denoise

Mean Curvature Blur to denoise

Alkuperäinen kuva

Mean Curvature Blur to denoise

Iterations = 9