ImagickPixelIterator::clear

(PECL imagick 2.0.0)

Clear resources associated with a PixelIterator

bool ImagickPixelIterator::clear ( void )

Clear resources associated with a PixelIterator.

Returns:

Returns TRUE on success.

This function is currently not documented; only its argument list is available.

Examples:

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;
}
 
?>

Links:

http://php.net/manual/en/imagickpixeliterator.clear.php

doc_php

2025-01-10 15:47:30

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