PHP | Imagick setImageMatte() Function
Last Updated :
26 Aug, 2019
The Imagick::setImageMatte() function is an inbuilt function in PHP which is used to set the matte channel of an Imagick object.
Syntax:
bool Imagick::setImageMatte( $matte )
Parameters: This function accepts single parameter $matte. If the parameter set to True then it activate the matte channel and if the parameter set to False then it disable the matte channel.
Return Value: This function returns True on success.
Below programs illustrate the Imagick::setImageMatte() function in PHP:
Original Image:
Program 1:
<?php
$imagick = new Imagick(
$res = $imagick ->getImageMatte();
echo "Matte Before: " . $res . "</br>" ;
$imagick ->setImageMatte(true);
$res = $imagick ->getImageMatte();
echo "Matte After: " . $res . "</br>" ;
?>
|
Output:
Matte Before: 1
Matte After: 1
Original Image:
Program 2:
<?php
$string = "Computer Science portal for Geeks!" ;
$im = new Imagick();
$draw = new ImagickDraw();
$draw ->setFillColor( new ImagickPixel( 'green' ));
$draw ->setFontSize(50);
$metrix = $im ->queryFontMetrics( $draw , $string );
$draw ->annotation(0, 40, $string );
$im ->newImage( $metrix [ 'textWidth' ], $metrix [ 'textHeight' ],
new ImagickPixel( 'white' ));
$im ->drawImage( $draw );
$im ->setImageFormat( 'jpeg' );
$res = $im ->getImageMatte();
echo "Matte Before: " . $res . "</br>" ;
$im ->setImageMatte(false);
$res = $im ->getImageMatte();
echo "Matte After: " . $res . "</br>" ;
?>
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Output:
Matte Before: 1
Matte After:
Reference: http://php.net/manual/en/imagick.setimagematte.php
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