The Imagick::setImageDepth() function is an inbuilt function in PHP which is used to set the depth of a particular image.
Syntax:
bool Imagick::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 true on success.
Below program illustrates the Imagick::setImageDepth() function in PHP:
Original Image:
Program 1:
php
<?php // require_once('path/vendor/autoload.php'); // Create an Imagick Object $image = new Imagick(
// Use getImageDepth function to find the depth // of image $res = $image ->getImageDepth();
// Display the depth of image echo "Previous Depth" . $res ;
$image ->setImageDepth(20);
$res = $image ->getImageDepth();
echo "</br>After Set Depth" . $res ;
?> |
Output:
Previous Depth 8 After Set Depth 20
Original Image:
Program 2:
php
<?php $string = "Computer Science portal for Geeks!" ;
// creating new image of above String // and add color and background $im = new Imagick();
$draw = new ImagickDraw();
// Fill the color in image $draw ->setFillColor( new ImagickPixel( 'green' ));
// Set the text font size $draw ->setFontSize(50);
$matrix = $im ->queryFontMetrics( $draw , $string );
$draw ->annotation(0, 40, $string );
$im ->newImage( $matrix [ 'textWidth' ], $matrix [ 'textHeight' ],
new ImagickPixel( 'white' ));
// Draw the image $im ->drawImage( $draw );
$im ->setImageFormat( 'jpeg' );
$dpth = $im ->getImageDepth();
// Display the depth of image print ( "Previous Depth = " . $dpth );
$im ->setImageDepth(20);
$dpthnew = $im ->getImageDepth();
// Display the depth of image print ( "</br>Depth After Set = " . $dpthnew );
?> |
Output:
Previous Depth = 8 Depth After Set = 20
Reference: http://php.net/manual/en/imagick.setimagedepth.php