5.15. Bølgjer
| 5. Forvrengningsfiltra |

### 5.15. Bølgjer

#### 5.15.1. Oversyn

Figur 17.95. Eksempel på bruk av filteret

Originalbiletet

Filter «Waves» applied with default options and period = 20.0

Dette filteret gir same effekten som dei konsentriske ringane du får når du kastar ein stein i stille vatn.

#### 5.15.2. Aktivering

Du har tilgang til dette filteret frå biletmenyen via Filter → Forvrengningar → Bølgjer

#### 5.15.3. Innstillingar

Figur 17.96. Innstillingane for filteret «bølgjer»

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

  | Notat
  These options are described in Del 2, «Common Features».

Center X, Center Y

  Move the center of the waves

Amplityde

  Varies the height of the waves.

Periode

  That is wavelength. Varies the distance between the top of waves.

  The high default value suits large images. For images of some hundreds pixels wide and high, a lower value, such as 20 in our example, fits better.

Faseskift

  This command shifts the top of the ripple.

Aspect ratio

  Values less than 1.00 render waves oval, with major axis vertical. Values higher than 1.00 give a major axis horizontal.

Resampling method

  These interpolation methods are described in Interpolering.

Clamp deformation

  This limits the deformation in the image area. When this is disabled you seem to get transparent or black areas (depending on whether the layer has an alpha channel or not). When enabled, these areas will keep their normal color.

5.14. Video |  | 5.16. Vri og vreng

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