(PECL imagick 2.0.0)
ImagickPixelIterator::getNextIteratorRow — Returns the next row of the pixel iterator
Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Argumente zur Verfügung.
Returns the next row as an array of pixel wands from the pixel iterator.
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
Beispiel #1 ImagickPixelIterator::getNextIteratorRow()
<?php
function getNextIteratorRow($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
$count = 0;
while ($pixels = $imageIterator->getNextIteratorRow()) {
if (($count % 3) == 0) {
/* 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();
}
$count += 1;
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>