(PECL imagick 2, PECL imagick 3)
Imagick::getPixelIterator — Returns a MagickPixelIterator
此函数没有参数。
Returns an ImagickPixelIterator on success.
错误时抛出 ImagickException。
示例 #1 Imagick::getPixelIterator()
<?php
function getPixelIterator($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
foreach ($imageIterator as $row => $pixels) {
foreach ($pixels as $column => $pixel) {
if ($column % 2) {
$pixel->setColor("rgba(0, 0, 0, 0)");
}
}
$imageIterator->syncIterator();
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>