PHPKonf İstanbul PHP Conference 2015

ImagickPixelIterator::getNextIteratorRow

(PECL imagick 2.0.0)

ImagickPixelIterator::getNextIteratorRowReturns the next row of the pixel iterator

Descrierea

array ImagickPixelIterator::getNextIteratorRow ( void )
Avertizare

Această funcție nu este documentată în prezent; este disponibilă numai lista sa de argumente.

Returns the next row as an array of pixel wands from the pixel iterator.

Valorile întoarse

Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.

Exemple

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;
}

?>

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top