3.13. Dlaždicovatelné rozostření
| 3. Filtry rozostření |

### 3.13. Dlaždicovatelné rozostření

#### 3.13.1. Overview

Obrázek 17.34. Example for the „Tileable“ filter

Původní obrázek

Filter „Tileable Blur“ applied

This filter is a script-fu and not GEGL-based.

This filter is used to soften tile seams in images used in tiled backgrounds. It does this by blending and blurring the boundary between images that will be next to each other after tiling.

| Tip

If you want to treat only images borders, you can't apply filter to the whole image. The solution to get the wanted effect is as follows:

1. Duplicate layer (Layer → Duplicate Layer) and select it to work on it.

2. Apply „Tileable Blur“ filter with a 20 pixels radius to this layer.

3. Select all (Ctrl+A) and reduce selection (Selection → Shrink) to create a border with the wanted width.

4. Give a feathered border to the selection by using Selection → Feather.

5. Delete selection with Ctrl+K.

6. Merge layers with Layer → Merge down.

#### 3.13.2. Activate the filter

You can find this filter in the image menu under Filters → Blur → Tileable Blur….

#### 3.13.3. Options

Obrázek 17.35. „Tileable Blur“ filter options

Poloměr

  Čím je poloměr větší, tím je rozostření patrnější. Volbou Rozostřit svisle a Rozostřit vodorovně získáte dlaždicovatelné horizontální a vertikální okraje obrázku.

Rozostřit svisle, Rozostřit vodorovně

  These options are self-explanatory.

Typ rozostření

  Choose the algorithm to be applied:

  IIR

    for photographic or scanned images.

  RLE

    for computer-generated images.

3.12. Zoom Motion Blur |  | 4. Filtry vylepšení

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