Imagick::getPixelIterator

Returns a MagickPixelIterator

Description

public ImagickPixelIterator Imagick::getPixelIterator()

Returns a MagickPixelIterator.

Parameters

This function has no parameters.

Return Values

Returns an ImagickPixelIterator on success.

Errors/Exceptions

Throws ImagickException on error.

Examples

Example #1 Imagick::getPixelIterator

<?php
function getPixelIterator($imagePath) {
    $imagick = new \Imagick(realpath($imagePath));
    $imageIterator = $imagick->getPixelIterator();

    foreach ($imageIterator as $row => $pixels) { /* Loop through pixel rows */
        foreach ($pixels as $column => $pixel) { /* Loop through the pixels in the row (columns) */
            /** @var $pixel \ImagickPixel */
            if ($column % 2) {
                $pixel->setColor("rgba(0, 0, 0, 0)"); /* Paint every second pixel black*/
            }
        }
        $imageIterator->syncIterator(); /* Sync the iterator, this is important to do on each iteration */
    }

    header("Content-Type: image/jpg");
    echo $imagick;
}

?>