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ImagickPixelIterator::__construct

(PECL imagick 2, PECL imagick 3)

ImagickPixelIterator::__constructThe ImagickPixelIterator constructor

说明

public ImagickPixelIterator::__construct(Imagick $wand)
警告

本函数还未编写文档,仅有参数列表。

The ImagickPixelIterator constructor

返回值

成功时返回 true

示例

示例 #1 ImagickPixelIterator::construct()

<?php
function construct($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = new \ImagickPixelIterator($imagick);

/* Loop through pixel rows */
foreach ($imageIterator as $pixels) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 2) {
/* Paint every second pixel black*/
$pixel->setColor("rgba(0, 0, 0, 0)");
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}

header("Content-Type: image/jpg");
echo
$imagick;
}

?>

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