### 12.7. Round Corners

#### 12.7.1. Overview

Pav. 17.277. Example for the „Round Corners“ filter

Original image

Filter applied

This filter rounds the corners of an image, optionally adding a drop-shadow and a background layer.

The filter works on RGB and grayscale images that contain only one layer. It creates a copy of the image or can optionally work on the original. It uses the current background color to create a background layer.

| Pastaba
If the image is in indexed mode, this menu entry is disabled.

#### 12.7.2. Activating the Filter

This filter is found in the main menu under Filters → Decor → Round Corners….

#### 12.7.3. Options

Pav. 17.278. „Round Corners“ options

Edge radius

  Rounding corners is done by selecting a quarter of a circle at every corner and removing the area not covered by this selection. The „edge radius“ is the radius of the constructing circle.

  In the examples below, the filter was applied to a 100×100 pixels image, with varying edge radius. For radius = 50, the four quadrants just form a circle with diameter = 100, which exactly fits into the original image outline. A radius greater than 50 is possible, but look what happens:

  Pav. 17.279. Edge radius examples

  A 100×100 pixels image, edge radius: 15 (default).

  Edge radius: 35.

  Edge radius: 50.

  Edge radius: 65. Ouch!

Add drop-shadow

  When this option is checked, the filter will cast a shadow behind your image after rounding the image corners.

Shadow X/Y offset

  X and Y offset determine where the shadow will be placed in relation to the image. Offset is measured in pixels. High values make the shadow look like it's far away, and low values will make it look closer to the image.

  Pav. 17.280. Shadow offset examples

  Shadow X offset: 8, Y offset: 8 (default).

  Shadow X offset: 16, Y offset: 4.

  Note that the shadow offsets as well as the blur radius are limited to background area.

Blur radius

  When Add drop-shadow is checked, you may select a blur radius, which will be used by the Drop Shadow filter. The image will be enlarged in both dimensions depending on the blur radius and the shadow offsets.

Add background

  When you check this option (it is checked by default), the filter will add a background layer below the existing layer, filled with the current background color. The size of this new layer depends on the blur radius and the shadow offsets.

Work on copy

  If checked, the filter creates a new window containing a copy of the image with the filter applied. The original image remains unchanged.

12.6. Old Photo |  | 12.8. Slide

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