### 8.37. Échange de 2 couleurs

#### 8.37.1. Généralités

Figure 16.189. Exemple pour le filtre « Échanger deux couleurs »

Image d'origine

Filter applied with From color RGB (122, 149, 199), To color RGB (255, 0, 0), Red threshold 0.106, Green threshold 0.100, Blue threshold 0.190.

Ce filtre remplace une couleur par une autre.

#### 8.37.2. Activating the Command

You can access this command from the main menu through Colors → Map → Color Exchange….

#### 8.37.3. Options

Figure 16.190. The « Color Exchange » Dialog

Presets, Blending Options, Aperçu, Merge filter, Split view

  | Note
  These options are described in Section 8.1.2, « Fonctions communes aux couleurs ».

Couleur d'origine

  This is the color you want to replace. To choose a color you can either use the color button to open the Color Picker dialog, or you can use the Color Picker tool to pick a color from your image.

Couleur destination

  This is the new color you want to use. To choose a color you can either use the color button to open the Color Picker dialog, or you can use the Color Picker tool to pick a color from your image.

Red Threshold, Green Threshold, Blue Threshold

  These sliders allow you to set how sensitive the red, green and blue components are to differences from the From color. The higher the threshold, the more pixels will be affected.

8.36. Psychédélique |  | 8.38. Rotation des couleurs

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