ImagickPixelIterator::resetIterator
ImagickPixelIterator::resetIterator
(PECL imagick 2.0.0)
ImagickPixelIterator::resetIterator — Resets the pixel iterator
Description
bool ImagickPixelIterator::resetIterator ( void )
Warning
This function is currently not documented; only its argument list is available.
Resets the pixel iterator. Use it in conjunction with ImagickPixelIterator::getNextIteratorRow() to iterate over all the pixels in a pixel container.
Return Values
Returns TRUE on success.
Examples
Example #1 ImagickPixelIterator::resetIterator()
<?php
function resetIterator($imagePath) {
$imagick = new \Imagick(realpath($imagePath)
$imageIterator = $imagick->getPixelIterator(
/* Loop trough pixel rows */
foreach ($imageIterator as $pixels) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 2) {
/* Make every second pixel 25% red*/
$pixel->setColorValue(\Imagick::COLOR_RED, 64
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator(
}
$imageIterator->resetiterator(
/* Loop trough pixel rows */
foreach ($imageIterator as $pixels) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 3) {
$pixel->setColorValue(\Imagick::COLOR_BLUE, 64 /* Make every second pixel a little blue*/
//$pixel->setColor("rgba(0, 0, 128, 0)" /* Paint every second pixel black*/
}
}
$imageIterator->syncIterator( /* Sync the iterator, this is important to do on each iteration */
}
$imageIterator->clear(
header("Content-Type: image/jpg"
echo $imagick;
}
?>
← ImagickPixelIterator::newPixelRegionIterator
ImagickPixelIterator::setIteratorFirstRow →
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/imagickpixeliterator.resetiterator.php
