ImageMagick ImagickPixelIterator::__construct

(PECL imagick 2, PECL imagick 3)

ImagickPixelIterator::__construct — The ImagickPixelIterator constructor

설명

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public ImagickPixelIterator::__construct(Imagick $wand)

경고 이 함수는 현재 문서화되어 있지 않습니다. 해당 인수 목록만 사용할 수 있습니다.

ImagickPixelIterator 생성자

반환 값

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성공하면 true를 반환합니다.

Examples

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예제 #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;
}

?>