Imagick::textureImage
Imagick::thumbnailImage
The Imagick class
PHP Manual

# Imagick::thresholdImage

(No version information available, might be only in CVS)

Imagick::thresholdImage — Changes the value of individual pixels based on a threshold

### Descrição

bool Imagick::thresholdImage ( float `$threshold` [, int `$channel` ] )
Aviso

Esta função não está documentada; somente a lista de argumentos está disponível.

Changes the value of individual pixels based on the intensity of each pixel compared to threshold. The result is a high-contrast, two color image.

### Parâmetros

`threshold`

`channel`

### Valor Retornado

Retorna `TRUE` em sucesso.

Imagick::textureImage
Imagick::thumbnailImage
The Imagick class
PHP Manual