The ImagickPixelIterator constructor

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- PHP Manual
- ImagickPixelIterator
- The ImagickPixelIterator constructor

# ImagickPixelIterator::__construct

(PECL imagick 2, PECL imagick 3)

ImagickPixelIterator::__construct — The ImagickPixelIterator constructor

### Description

public ImagickPixelIterator::__construct(Imagick `$wand`)
Warning

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

The ImagickPixelIterator constructor

### Return Values

Returns `true` on success.

### Examples

Example #1 ImagickPixelIterator::construct()

    <?php
    function construct($imagePath) {
        $imagick = new \Imagick(realpath($imagePath));
        $imageIterator = new \ImagickPixelIterator($imagick);

        /* Loop through 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) {
                    /* 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();
        }

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

    ?>