ImagickPixelIterator::clear
(PECL imagick 2, PECL imagick 3)
ImagickPixelIterator::clear — Clear resources associated with a PixelIterator
Description
public ImagickPixelIterator::clear(): bool
Warning
This function is currently not documented; only its argument list is available.
Clear resources associated with a PixelIterator.
Return Values
Returns true on success.
Examples
Example #1 ImagickPixelIterator::clear()
<?php
function clear($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelRegionIterator(100, 100, 250, 200);
/* Loop through pixel rows */
foreach ($imageIterator as $pixels) {
/** @var $pixel \ImagickPixel */
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
if ($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();
}
$imageIterator->clear();
header("Content-Type: image/jpg");
echo $imagick;
}
?>
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