(PECL imagick 2.0.0)
ImagickPixelIterator::setIteratorRow — Set the pixel iterator row
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Set the pixel iterator row.
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Example #1 ImagickPixelIterator::setIteratorRow()
<?php
function setIteratorRow($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelRegionIterator(200, 100, 200, 200);
for ($x = 0; $x < 20; $x++) {
$imageIterator->setIteratorRow($x * 5);
$pixels = $imageIterator->getCurrentIteratorRow();
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $pixel) {
/** @var $pixel \ImagickPixel */
/* 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;
}
?>