ImageMagick ImagickPixelIterator::resetIterator

(PECL imagick 2, PECL imagick 3)

ImagickPixelIterator::resetIterator — 픽셀 반복기를 재설정합니다.


설명

public ImagickPixelIterator::resetIterator(): bool

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

픽셀 반복기를 재설정합니다. ImagickPixelIterator::getNextIteratorRow()와 함께 사용하여 픽셀 컨테이너의 모든 픽셀을 반복합니다.


반환 값

성공하면 true를 반환합니다.


Examples

예제 #1 ImagickPixelIterator::resetIterator()

                  
<?php
function resetIterator($imagePath) {

    $imagick = new \Imagick(realpath($imagePath));

    $imageIterator = $imagick->getPixelIterator();

    /* Loop trough 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) {

                /* Make every second pixel 25% red*/
                $pixel->setColorValue(\Imagick::COLOR_RED, 64);
            }
        }
        /* Sync the iterator, this is important to do on each iteration */
        $imageIterator->syncIterator();
    }

    $imageIterator->resetiterator();

    /* Loop trough pixel rows */
    foreach ($imageIterator as $pixels) {
        /* Loop through the pixels in the row (columns) */
        foreach ($pixels as $column => $pixel) {
            /** @var $pixel \ImagickPixel */
            if ($column % 3) {
                $pixel->setColorValue(\Imagick::COLOR_BLUE, 64); /* Make every second pixel a little blue*/
                //$pixel->setColor("rgba(0, 0, 128, 0)"); /* Paint every second pixel black*/
            }
        }
        $imageIterator->syncIterator(); /* Sync the iterator, this is important to do on each iteration */
    }

    $imageIterator->clear();

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

?>