ImagickPixelIterator::getNextIteratorRow
(PECL imagick 2, PECL imagick 3)
ImagickPixelIterator::getNextIteratorRow — Returns the next row of the pixel iterator
Beschreibung
Warnung
Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Parameter zur Verfügung.
Returns the next row as an array of pixel wands from the pixel iterator.
Rückgabewerte
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
Beispiele
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;
}
?>
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