### 7.2. CIE lch Noise

#### 7.2.1. Overview

Figure 17.155. Example of applying the “CIE lch Noise” filter

Original image

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. “CIE lch Noise” filter options

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

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

Dulling

  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.

Chroma

  This slider changes the chroma of the pixels in a random pattern (percentage of a white of the same lightness).

Hue

  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.

Random seed, 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. Noise Filters |  | 7.3. HSV Noise

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