Restricts the color range from 0 to the quantum depth.

# Imagick::clampImage

(PECL imagick 3 >= 3.3.0)

Imagick::clampImage — Restricts the color range from 0 to the quantum depth.

### 说明

public function Imagick::clampImage(int `$channel` = Imagick::CHANNEL_DEFAULT): bool

Restricts the color range from 0 to the quantum depth.

### 参数

`channel`

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

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