Imagick::solarizeImage

(PECL imagick 2, PECL imagick 3)

Imagick::solarizeImage — Applies a solarizing effect to the image

说明

public Imagick::solarizeImage(int $threshold): bool

Applies a special effect to the image, similar to the effect achieved in a photo darkroom by selectively exposing areas of photo sensitive paper to light. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the solarization.

参数

threshold

返回值

成功时返回 true。

范例

示例 #1 Imagick::solarizeImage()


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

?>