3.9. Variable Blur
| 3. Blur Filters |

### 3.9. Variable Blur

#### 3.9.1. Overview

Figure 17.26. The Variable Blur filter

Original

Variable Blur applied

Variable Blur blurs the image by a variable amount using a mask set in Aux input. Black in the mask layer will be minimally blurred, and white will be blurred at maximum value.

#### 3.9.2. Options

Figure 17.27. Variable Blur filter dialog options

Presets, “Input Type”, Clipping, Blending Options, Preview, Split view

  | Note
  These options are described in Section 2, “Common Features”.

Aux input

  Here you can set the mask that determines how much a certain area of the input layer will be blurred. Black areas in the mask will result in minimal blurring of the output, and white will be blurred the most.

Radius

  Maximal blur radius.

Linear mask

  If enabled, use linear mask values.

High quality

  If enabled, generates more accurate and consistent output, at the cost of being slower.

3.8. Selective Gaussian Blur |  | 3.10. Circular Motion Blur

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