# Imagick::modulateImage

(PECL imagick 2, PECL imagick 3)

Imagick::modulateImage — Control the brightness, saturation, and hue

### 说明

public Imagick::modulateImage(float `$brightness`, float `$saturation`, float `$hue`): bool

Lets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.

### 参数

`brightness`

`saturation`

`hue`

### 返回值

成功时返回 `true`。

### 示例

示例 #1 Imagick::modulateImage()

`<?php
function modulateImage($imagePath, $hue, $brightness, $saturation) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->modulateImage($brightness, $saturation, $hue);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>`
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