Imagick::sepiaToneImage

(PECL imagick 2, PECL imagick 3)

Imagick::sepiaToneImage — Sepia tones an image

说明

public Imagick::sepiaToneImage(float $threshold): bool

Applies a special effect to the image, similar to the effect achieved in a photo darkroom by sepia toning. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the sepia toning. A threshold of 80 is a good starting point for a reasonable tone.

参数

threshold

返回值

成功时返回 true。

错误／异常

错误时抛出 ImagickException。

范例

示例 #1 Imagick::sepiaToneImage()

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

?>
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