### 6.10. Örtü

#### 6.10.1. Genel Görünüm

In photography, vignetting is a reduction of the image brightness toward periphery. It is often an undesired effect due to camera settings or lens limitations. But it is also deliberately used to draw attention to the center of the image. “Vignette” can produce this effect.

Şekil 17.137. Örnekler için kullanılan özgün görseller

Özgün görüntü

Filter applied

GIMP comes with on-canvas controls (default): two limits with white handles that turn to orange, and become active, when the mouse pointer hovers over them. The black (default) area is the vignette. The outer limit is the limit of the vignette. The inner limit is the limit of the soft area, the unchanged area. Between the outer and the inner limits is the fade area, where the vignette is fading progressively, with a dotted line that is the midpoint line.

Vignette with default options and on-canvas controls

Click-and-drag action is different on lines and on handles:

- Click-and-drag a limit line to move the limit and the midpoint (Radius and Softness).

- Click-and-drag a handle to move both limits (Radius and Squeeze).

- Click-and-drag the midpoint line to move it.

- In the three cases, pressing Shift only changes Radius.

#### 6.10.2. Süzgeci Etkinleştirme

Bu süzgeç ana menüde Süzgeçler → Işık ve Gölge → Örtü… altında bulunur.

#### 6.10.3. Seçenekler

Şekil 17.138. “Örtü” süzgeci seçenekleri

Önayarlar, “Girdi Türü”, Kırpma, Harmanlama Seçenekleri, Ön izleme, Süzgeci birleştir, Bölünmüş görünüm

  | Not
  Bu seçenekler şurada açıklanmıştır: Kısım 2, “Ortak Özellikler”.

Örtü şekli

  The following shapes are available: Circle, Square, Diamond, Horizontal and Vertical.

  Horizontal, Vertical: limits and line are horizontal or vertical.

  The shape of the vignette (ellipse or circle for example) depends on the Proportion setting.

Yarıçap

  Vignette size: how far out vignetting goes as part of half image diagonal.

  Yarıçap = 0,700

Yumuşaklık

  Soft (unchanged) area size.

  Yumuşaklık = 0,100

Gama

  Falloff linearity controls the curve of the falloff from the center to periphery: set how fast is brightness reduced towards edges of the vignette (fading area size).

  Gama = 1,00

Oran

  Proportion is particular: with the default value (maxi) 1.00, the vignette is a circle in a square image and an ellipse in a rectangular image. Reducing Proportion, this ellipse tends to a circle.

Sıkıştır

  Kullanılacak en boy oranı:

  - 0.0 = 1:1

  - 0.5 = 2:1

    Karo şekli, oran = 0,0 ve sıkıştır = 0,5

  - 1,0 = dikey olarak tamamen sıkıştırılmış

  - -0.5 = 1:2

  - -1,0 = yatay olarak tamamen sıkıştırılmış

  | Not
  To directly use squeeze factor as proportion, set Proportion to 0.0.

X Merkezi, Y Merkezi

  Coordinates of vignette center. Origin is the upper left corner of the image. 1.00 is the right border of the image. The center can be placed outside of the image.

Döndürme

  Rotation of the vignette. The vignette keeps its shape.

  You can also click-and-drag outside the outer limit to rotate the vignette.

Tuvalde denetimler

  Tuvalde denetimleri kaldırmak için bu seçeneğin işaretini kaldır.

6.9. Uzun Gölge |  | 6.11. Gölge (eski)

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