Imagick::getImageChannelDistortion
Imagick::getImageChannelMean
The Imagick class
PHP Manual

# Imagick::getImageChannelExtrema

(PECL imagick 2.0.0)

Imagick::getImageChannelExtrema — Gets the extrema for one or more image channels

### 설명

array Imagick::getImageChannelExtrema ( int `$channel` )
Warning

이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.

Gets the extrema for one or more image channels. Return value is an associative array with the keys "minima" and "maxima".

### 인수

`channel`

  Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Defaults to `Imagick::CHANNEL_ALL`. Refer to this list of channel constants.

### 반환값

성공시에 `TRUE`를 반환합니다.

### 오류/예외

오류시에 ImagickException이 발생합니다.

Imagick::getImageChannelDistortion
Imagick::getImageChannelMean
The Imagick class
PHP Manual