The ImagickPixelIterator::getNextIteratorRow() function is an inbuilt function in PHP which is used to get the next row as an array of pixel wands from the pixel iterator.
Syntax:
array ImagickPixelIterator::getNextIteratorRow( void )
Parameters:This function doesn’t accepts any parameter.
Return Value: This function returns an array value containing the ImagickPixel objects.
Below programs illustrate the ImagickPixelIterator::getNextIteratorRow() function in PHP:
Program 1:
<?php // Create a new imagick object $imagick = new Imagick(); // Create a image on imagick object // with 10x10 pixels $imagick->newImage(10, 10, 'black'); // Get the pixel iterator $imageIterator = $imagick->getPixelIterator(); // Rows counter variable $rows = 0; // Count the number of rows while ($pixels = $imageIterator->getNextIteratorRow()) { $rows++; } echo 'The number of rows are ' . $rows; ?> |
Output:
The number of rows are 10
Program 2:
<?php // Create a new imagick object $imagick = new Imagick(); // Create a image on imagick object $imagick->newImage(800, 250, 'black'); // Get the pixel iterator $imageIterator = $imagick->getPixelIterator(); while ($pixels = $imageIterator->getNextIteratorRow()) { foreach ($pixels as $column => $pixel) { if ($column % 20) { // Paint every 20th pixel black in each row $pixel->setColor("white"); } } // Sync the iterator $imageIterator->syncIterator(); } // Show the output $imagick->setImageFormat('png'); header("Content-Type: image/png"); echo $imagick->getImageBlob(); ?> |
Output:
Reference: https://www.php.net/manual/en/imagickpixeliterator.getnextiteratorrow.php
Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
