PHP | Imagick setImageGamma() Function

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The Imagick::setImageGamma() function is an inbuilt function in PHP which is used to set the image gamma.

Syntax:

bool Imagick::setImageGamma( float $gamma )

Parameters: This function accepts a single parameter $gamma which holds the gamma for the image.

Return Value: This function returns TRUE on success.

Exceptions: This function throws ImagickException on error.

Below given programs illustrate the Imagick::setImageGamma() function in PHP:

Program 1:

<?php 
  
// Create a new imagick object 
$imagick = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/zambiatek-13.png'); 
  
// Set the Gamma 
$imagick->setImageGamma(5); 
  
// Display the image 
header("Content-Type: image/png"); 
echo $imagick->getImageBlob(); 
?> 

Output:

Program 2:

<?php 
  
// Create a new imagick object 
$imagick = new Imagick( 
'https://media.zambiatek.com/wp-content/uploads/zambiatek-13.png'); 
  
// Set the Gamma 
$imagick->setImageGamma(15); 
  
// Add a border 
$imagick->borderImage('black', 2, 2); 
  
// Display the image 
header("Content-Type: image/png"); 
echo $imagick->getImageBlob(); 
?> 