ImagickPixelIterator::getNextIteratorRow
(PECL imagick 2, PECL imagick 3)
ImagickPixelIterator::getNextIteratorRow — Returns the next row of the pixel iterator
Descrizione
Avviso
Questa funzione, al momento non è documentata; è disponibile soltanto la lista degli argomenti.
Returns the next row as an array of pixel wands from the pixel iterator.
Valori restituiti
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
Esempi
Example #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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