5.10. Rozvlnit
| 5. Filtry zkreslení |

### 5.10. Rozvlnit

#### 5.10.1. Overview

Obrázek 17.75. „Ripple“ filter example

Original image

Filter „Ripple“ applied

Filtr zdeformuje obrázek vytvořením vln připomínajících odraz obrazu na neklidné vodě.

#### 5.10.2. Activating the Filter

This filter is found in the main menu under Filters → Distorts → Ripple….

#### 5.10.3. Options

Obrázek 17.76. „Ripple“ filter options

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

  | Poznámka
  These options are described in 2 – „Common Features“.

Original images for examples
  Origin

  Ripple applied with default options

Amplituda

  It is related to wave height (0-200 pixels).

  Amplitude = 25

Perioda

  It is related to wavelength (0-200 pixels)

  Period = 110

Phase shift

  Wave is moved

  Phase shift = 0.400

Úhel

  Warps wave

  Angle = -40°

Resampling methods

  These interpolation methods are described in Cubic (sometimes called „Bicubic“): The color of each pixel is computed as the average color of the eight closest pixels in the original image. This usually gives the best result, but it naturally takes more time..

Wave type

  Choose how the wave should look like:

  - Sawtooth

  - Triangle

  - Sinus

Abyss policy

  Rozvlnění způsobí, že na okrajích obrázku chybí některé pixely. Zde lze nastavit, jakým způsobem budou nahrazeny:

  Abyss policy = Black

  Abyss policy (border management) is treated with Abyss policy.

Tileable

  This preserves the seamless properties if your image is a tile pattern.

5.9. Polar Coordinates |  | 5.11. Shift

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