PHP | Gmagick setimagedepth() function
Last Updated :
29 Aug, 2019
The Gmagick::setimagedepth() function is an inbuilt function in PHP which is used to set the depth of a particular image.
Syntax:
Gmagick Gmagick::setimagedepth( $depth )
Parameters: This function accepts a single parameter $depth which is an integer value and used to set the depth of image.
Return Value: This function returns the Gmagick object on success.
Below programs illustrate the Gmagick::setimagedepth() function in PHP:
Program 1:
Original Image:
<?php
$image = new Gmagick(
$res = $image ->getImageDepth();
echo "Previous Depth: " . $res ;
$image ->setimagedepth(16);
$res = $image ->getImageDepth();
echo "</br>After Set the Depth: " . $res ;
?>
|
Output:
Previous Depth: 8
After Set the Depth: 16
Program 2:
<?php
$string = "Computer Science portal for Geeks!" ;
$im = new Gmagick();
$draw = new GmagickDraw();
$draw ->setFillColor( new GmagickPixel( 'green' ));
$draw ->setFontSize(50);
$metrix = $im ->queryFontMetrics( $draw , $string );
$draw ->annotation(0, 40, $string );
$im ->newImage( $metrix [ 'textWidth' ], $metrix [ 'textHeight' ],
new GmagickPixel( 'white' ));
$im ->drawImage( $draw );
$im ->setImageFormat( 'jpeg' );
$dpth = $im ->getImageDepth();
print ( "Previous Depth = " . $dpth );
$im ->setimagedepth(32);
$dpthnew = $im ->getImageDepth();
print ( "</br>Depth After Set = " . $dpthnew );
?>
|
Output:
Previous Depth = 8
Depth After Set = 32
Reference: http://php.net/manual/en/gmagick.setimagedepth.php
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