### 8.61. Local Threshold

#### 8.61.1. Ativando o filtro

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

#### 8.61.2. Opções

Figura 16.233. “Local Threshold” filter options

Predefinições, Tipo de Entrada, Corte, Opções de Mistura, Pré-visualização, Merge filter, Split view

  | Nota
  These options are described in Seção 8.1.2, “Funcionalidades Comuns de Cores”.

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. Quente… |  | 9. O menu “Ferramentas”

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