PHP | ImagickPixelIterator getCurrentIteratorRow() function
The ImagickPixelIterator::getCurrentIteratorRow() function is an inbuilt function in PHP which is used to get the current row as an array of ImagickPixel objects from the pixel iterator.
Syntax:
array ImagickPixelIterator::getCurrentIteratorRow( void )
Parameters:This function doesn’t accept any parameter.
Return Value: This function returns an array value containing the ImagickPixel objects that can themselves be iterated.
Exceptions: This function throws ImagickException on error.
Below given programs illustrate the ImagickPixelIterator::getCurrentIteratorRow() function in PHP:
Program 1 (Get first five pixels of first row):
<?php
$imagick = new Imagick();
$imagick ->newImage(5, 10, 'black' );
$pixelIterator = $imagick ->getPixelIterator();
$row = $pixelIterator ->getCurrentIteratorRow();
print ( "<pre>" .print_r( $row , true). "</pre>" );
?>
|
Output:
Array
(
[0] => ImagickPixel Object
(
)
[1] => ImagickPixel Object
(
)
[2] => ImagickPixel Object
(
)
[3] => ImagickPixel Object
(
)
[4] => ImagickPixel Object
(
)
)
Program 2 (Get the color of first five pixels of first row):
<?php
$imagick = new Imagick(
$pixelIterator = $imagick ->getPixelIterator();
$row = $pixelIterator ->getCurrentIteratorRow();
echo "First five colors of pixels are:<br>" ;
print ( "Pixel 1:" . "<pre>" .print_r( $row [0]->getColor(), true). "</pre>" );
print ( "Pixel 2:" . "<pre>" .print_r( $row [1]->getColor(), true). "</pre>" );
print ( "Pixel 3:" . "<pre>" .print_r( $row [2]->getColor(), true). "</pre>" );
print ( "Pixel 4:" . "<pre>" .print_r( $row [3]->getColor(), true). "</pre>" );
print ( "Pixel 5:" . "<pre>" .print_r( $row [4]->getColor(), true). "</pre>" );
?>
|
Output:
First five colors of pixels are:
Pixel 1:
Array
(
[r] => 255
[g] => 255
[b] => 255
[a] => 1
)
Pixel 2:
Array
(
[r] => 255
[g] => 255
[b] => 255
[a] => 1
)
Pixel 3:
Array
(
[r] => 255
[g] => 255
[b] => 255
[a] => 1
)
Pixel 4:
Array
(
[r] => 255
[g] => 255
[b] => 255
[a] => 1
)
Pixel 5:
Array
(
[r] => 255
[g] => 255
[b] => 255
[a] => 1
)
Reference: https://www.php.net/manual/en/imagickpixeliterator.getcurrentiteratorrow.php
Last Updated :
02 Jan, 2020
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