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

# Imagick::thresholdImage

(PECL imagick 2.0.0)

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

### 설명

bool Imagick::thresholdImage ( float `$threshold` [, int `$channel`= Imagick::CHANNEL_ALL ] )
Warning

이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.

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.

### 인수

`threshold`

`channel`

### 반환값

성공시에 `TRUE`를 반환합니다.

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