Php/docs/imagickpixeliterator.getnextiteratorrow
ImagickPixelIterator::getNextIteratorRow
(PECL imagick 2, PECL imagick 3)
ImagickPixelIterator::getNextIteratorRow — Returns the next row of the pixel iterator
说明
public ImagickPixelIterator::getNextIteratorRow ( ) : array
Warning 本函数还未编写文档，仅有参数列表。
Returns the next row as an array of pixel wands from the pixel iterator.
返回值
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
范例
Example #1 ImagickPixelIterator::getNextIteratorRow()
<?phpfunction getNextIteratorRow($imagePath) { $imagick = new \Imagick(realpath($imagePath)); $imageIterator = $imagick->getPixelIterator(); $count = 0; while ($pixels = $imageIterator->getNextIteratorRow()) { if (($count % 3) == 0) { /* 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(); } $count += 1; } header("Content-Type: image/jpg"); echo $imagick;}?>
