(PECL imagick 2.0.0)
Returns the next row of the pixel iterator
array ImagickPixelIterator::getNextIteratorRow ( void )
Returns the next row as an array of pixel wands from the pixel iterator.
Returns:
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
This function is currently not documented; only its argument list is available.
Examples:
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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