# Imagick::blueShiftImage

(PECL imagick 3 >= 3.3.0)

Imagick::blueShiftImage — Mutes the colors of the image

### 说明

public Imagick::blueShiftImage(float `$factor` = 1.5): bool

Mutes the colors of the image to simulate a scene at nighttime in the moonlight.

### 参数

`factor`

### 返回值

成功时返回 `true`。

### 示例

示例 #1 Imagick::blueShiftImage()

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