PHPerKaigi 2024

ImagickPixelIterator::clear

(PECL imagick 2, PECL imagick 3)

ImagickPixelIterator::clearClear resources associated with a PixelIterator

Descrição

public ImagickPixelIterator::clear(): bool
Aviso

Esta função não está documentada; apenas a lista de argumentos está disponível.

Clear resources associated with a PixelIterator.

Valor Retornado

Retorna true em caso de sucesso.

Exemplos

Exemplo #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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