### 8.61. Local Threshold

#### 8.61.1. Activa el filtre

This filter is found in the main menu under Colors → Local Threshold….

#### 8.61.2. Opcions

Figura 16.233. «Local Threshold» filter options

Predefinits, Tipus d'entrada, Retallat, Opcions de barreja, Previsualitza, Combina el filtre, Vista dividida

  | Nota
  These options are described in Secció 8.1.2, «Característiques comunes dels colors».

Radius

  Standard deviation of gaussian neighborhood average for computing local contrast. If 0 is used a global threshold is used instead of one based on local contrast.

Antialiasing

  This sets a rough target of levels of accuracy for anti-aliasing, or set to 1 to disable anti-aliasing.

Threshold level

  Thresholding level consists of two values. Change the lower threshold towards 0 to minimize shadows or towards 1.0 to minimize highlights. The high threshold decides the maximum values to include, above this it gets set to 0.

8.60. Càlid… |  | 9. Menú «Eines»

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