Imagick::waveImage
Imagick::writeImage
The Imagick class
PHP Manual

# Imagick::whiteThresholdImage

(PECL imagick 2.0.0)

Imagick::whiteThresholdImage — Force all pixels above the threshold into white

### 설명

bool Imagick::whiteThresholdImage ( mixed `$threshold` )
Warning

이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.

Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.

### 인수

`threshold`

### 반환값

성공시에 `TRUE`를 반환합니다.

### 변경점

버전 | 설명
--- | ---
2.1.0 | Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object.

Imagick::waveImage
Imagick::writeImage
The Imagick class
PHP Manual