3.4. Lens Blur
| 3. Filtri di sfocatura |

### 3.4. Lens Blur

#### 3.4.1. Panoramica

Figura 17.14. The Lens Blur filter

Originale

Lens Blur applied

Lens blur simulates an out-of-focus camera picture.

#### 3.4.2. Opzioni

Figura 17.15. Lens Blur filter dialog options

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

  | Nota
  Queste opzioni sono descritte in Sezione 2, «Caratteristiche comuni».

Aux input

  This allows you to select an additional input layer or channel, that will be used to compute the lens blur. Clicking on the square picture allows you to select from a list of available layers and channels. The Aux input will only be used if this setting is enabled.

Raggio

  The size of the blur radius.

Highlight factor

  Relative highlight strength.

Highlight threshold

  Here you can set the minimum and maximum values for highlighting. It can be set either by dragging the black and white triangles, or inputting exact values into the number entry fields.

Clip to input extents

  If enabled, this limits the output to the input extents.

Linear mask

  If enabled, use linear mask values.

3.3. Sfocatura gaussiana |  | 3.5. Sfocatura curvatura media

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