PHP | Imagick setImageDepth() Function

The Imagick::setImageDepth() function is an inbuilt function in PHP which is used to set the depth of a particular image.


bool Imagick::setImageDepth( $depth )

Parameters: This function accepts 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:
Program 1:
Original Image:

// 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 "Prevoius Depth" . $res
$res = $image->getImageDepth();
echo "</br>After Set Depth" . $res



Prevoius Depth 8
After Set Depth 20

Program 2:

$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 
$metrix = $im->queryFontMetrics($draw, $string); 
$draw->annotation(0, 40, $string); 
$im->newImage($metrix['textWidth'], $metrix['textHeight'], 
         new ImagickPixel('white')); 
// Draw the image          
$dpth = $im->getImageDepth();
// Display the depth of image
print("Previus Depth = " . $dpth);
$dpthnew = $im->getImageDepth();
// Display the depth of image
print("</br>Depth After Set  = " . $dpthnew);


Previus Depth = 8
Depth After Set = 20

Reference: http://php.net/manual/en/imagick.setimagedepth.php

This article is attributed to GeeksforGeeks.org

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