### 9.5. Dilatovat

#### 9.5.1. Overview

Obrázek 17.194. Dilatovat

Original image

Filter applied

Tento filtr rozšiřuje a zvýrazňuje světlé oblasti aktivní vrstvy nebo výběru.

For every image pixel, it brings the pixel Value (luminosity) into line with the upper value (the brightest) of the 8 neighboring pixels (3×3 matrix). So, a bright pixel is added around bright areas. An isolated pixel on a brighter background will be deleted. A larger bright area will dilate by one pixel in all directions.

On complex images, bright areas are widened and enhanced the same, and somewhat pixelated.

On a solid background, this filter can delete noise:

Obrázek 17.195. „Dilate“ example

#### 9.5.2. Activating the Filter

This filter is found in the main menu under Filters → Generic → Dilate.

#### 9.5.3. Příklady

Obrázek 17.196. Dilatování neónového efektu

9.4. Normal Map |  | 9.6. Erodovat

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