### 3.5. Mean Curvature Blur

#### 3.5.1. Overview

Рисунок 17.16. Example for the «Mean Curvature Blur» filter

Original image

Filter applied

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 Filters → Blur → Mean Curvature Blur….

#### 3.5.3. Options

Рисунок 17.17. «Mean Curvature Blur» filter parameters

Presets, «Input Type», Clipping, Blending Options, Preview, Merge filter, Split view

  | Примітка
  These options are described in Розділ 2, «Common Features».

Iterations

  Increasing Iterations increases blur.

#### 3.5.4. Examples

Original image

Iterations = 4

Mean Curvature Blur can be used to denoise an image:

Рисунок 17.18. Mean Curvature Blur to denoise

Original image

Iterations = 9

3.4. Lens Blur |  | 3.6. Median Blur

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