### 7.2. Bruit CIE lch

#### 7.2.1. Généralités

Figure 17.155. Exemple d’application du filtre « CIE lch »

Image d’origine

Filter applied

The CIE lch Noise filter creates noise in the active layer or selection by using the Lightness, Chroma, Hue color model, according to the CIE (« Compagnie Internationale de l'Éclairage ») specifications.

#### 7.2.2. Activating the Filter

This filter is found in the main menu under Filters → Noise → CIE lch Noise….

#### 7.2.3. Options

Figure 17.156. Options du filtre « Bruit CIE lch »

Presets, « Input Type », Rognage, Blending Options, Preview, Merge filter, Split view

  | Note
  Ces options sont décrites dans Section 2, « Options communes ».

Ternir

  This slider (1 - 8) controls the randomness of the noise: a high value lowers the randomness.

Lightness

  This slider changes the lightness of the noise.

Chrominance

  Ce curseur change le chroma des pixels de façon aléatoire (pourcentage de blanc de même luminosité).

Teinte

  This slider changes the hue of the pixels in a random pattern. A higher value will increase the average change from the original pixel color.

Graine aléatoire, New Seed

  This option controls the randomness of the filter. The Random seed box lets you manually enter a seed for the randomization algorithm used. You can also generate a random seed by pressing the New Seed button. If the same random seed is used in the same situation, the filter produces exactly the same results. A different random seed produces different results.

7. Filtres de bruit |  | 7.3. Bruit

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