### 4.6. Red Eye Removal

#### 4.6.1. Overview

Figure 17.44. Example for the “Red Eye Removal” filter

Original image

Filter applied

The aim of this filter is to remove red eyes from an image. For best results, you should first select the red parts of the eyes before applying this filter, or else all red areas in your image will be affected.

| Note
If the image is in grayscale mode, this menu entry is disabled.

#### 4.6.2. Activating the Filter

This filter is found in the main menu under Filters → Enhance → Red Eye Removal….

#### 4.6.3. Options

Figure 17.45. “Red Eye Removal” options

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

  | Note
  These options are described in Section 2, “Common Features”.

Threshold

  This setting allows you to adjust the amount of red needed to change the color. The red value in each pixel is replaced by a combination of the green and almost 20% of the blue in the same pixel.

4.5. Noise Reduction |  | 4.7. Symmetric Nearest Neighbor

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