Imagick::getPixelIterator
(PECL imagick 2.0.0)
Imagick::getPixelIterator — Returns a MagickPixelIterator
Description
ImagickPixelIterator Imagick::getPixelIterator ( void )Returns a MagickPixelIterator.
Return Values
Returns an ImagickPixelIterator on success.
Errors/Exceptions
Throws ImagickException on error.
Examples
Example #1 Imagick::getPixelIterator()
<?php
function getPixelIterator($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
foreach ($imageIterator as $row => $pixels) { /* Loop through pixel rows */
foreach ($pixels as $column => $pixel) { /* Loop through the pixels in the row (columns) */
/** @var $pixel \ImagickPixel */
if ($column % 2) {
$pixel->setColor("rgba(0, 0, 0, 0)"); /* Paint every second pixel black*/
}
}
$imageIterator->syncIterator(); /* Sync the iterator, this is important to do on each iteration */
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>← Imagick::getPage
Imagick::getPixelRegionIterator →
© 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
