PHP | Imagick getImageFormat() Function

PHP | Imagick getImageGamma() Function

Last Updated : 26 Aug, 2019

The Imagick::getImageGamma() function is an inbuilt function in PHP which is used to get the Gamma value of the image. The Gamma is a nonlinear operation used to encode and decode luminance or tristimulus values in images.

Syntax:

float Imagick::getImageGamma( void )

Parameters: This function does not accepts any parameters.

Return Value: This function returns True on success.

Errors/Exceptions: It throws an ImagickException on error.

Below program illustrates the Imagick::getImageGamma() function in PHP:

Program:

<?php  
// require_once('path/vendor/autoload.php');  
   
// Create a new Imagick Object 
$image = new Imagick( 
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-14.png'); 
   
// getImageGamma function 
$size = $image->getImageGamma(); 
  
// Display the colorspace 
print_r($size); 
?> 
<?php  

Output:

0.45454999804497

Related Articles:

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

PHP | Imagick getImageFormat() Function

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