### 3.9. Variable Blur

#### 3.9.1. Overview

شكل 17.29. The Variable Blur filter

Original image

Filter applied

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

#### 3.9.2. Activating the Filter

This filter is found in the main menu under Filters → Blur → Variable Blur….

#### 3.9.3. Options

شكل 17.30. Variable Blur filter dialog options

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

  | ياداشت
  These options are described in قسمت 2, “Common Features” .

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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