ImagickPixelIterator::getNextIteratorRow

(PECL imagick 2.0.0)

ImagickPixelIterator::getNextIteratorRowReturns the next row of the pixel iterator

说明

array ImagickPixelIterator::getNextIteratorRow ( void )
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()

<?php
function 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;
}

?>

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